What assertiveness is. 10 tips for effective communication
Assertiveness is a balanced communication style in which a person expresses their opinions, needs and emotions clearly, directly and respectfully.
What is assertiveness
Assertiveness is the ability to say clearly what you think, what you feel and what you need, without attacking the other person and without shrinking in front of them. It is a communication style, not a trait you are born with, so it can be learned at any age.
The term entered psychology through behavior therapy, and in the '70s the first books on assertiveness training for the general public appeared. In the DEX, the standard Romanian dictionary, the word “asertiv” still has its older and drier meaning, “having the character of an assertion”, that is, affirmative. The psychological sense came into Romanian from English, together with assertiveness, and it is much richer. An assertive person stands up for their rights without trampling on those of others, and the way they speak shows good self-knowledge and healthy self-esteem.
Assertiveness sits in the middle between two extremes we have all come across. At one end is the person who says “yes” so as not to upset anyone, with an excessive need for external approval and their own wishes always put last, a behavior English calls people-pleasing. At the other end is the person who imposes their point of view through a raised voice, criticism or intimidation. The first loses their voice, while the second slowly loses the trust of the people around them. Assertiveness keeps both of them.
Assertive, passive, aggressive and passive-aggressive
Psychologists usually describe 4 communication styles. You recognize them more easily by what they leave behind than by the words they use.
The passive style means swallowing your thoughts to keep the peace. A passive person says “yes” when they would like to say “no”, speaks quietly and hesitantly, avoids eye contact and fears conflict and rejection. In the moment it feels comfortable, but frustration builds up and other people end up deciding for them. The bill comes later.
The aggressive style goes the exact opposite way. The tone is raised, the language harsh, the other person is interrupted and backed into a corner, and the posture says “I am right” before any argument is made. An aggressive person wins the discussion and loses the relationship, because the people around them start to avoid them or to defend themselves.
The passive-aggressive style is the hardest to catch. Dissatisfaction is not spoken, it shows in sarcasm, in heavy silences, in tasks put off “by mistake” or in ironic remarks dropped in passing. On the surface everything looks like cooperation, while hostility flows underneath.
The assertive style calls things by their name, calmly. Someone who communicates assertively expresses their thoughts and needs clearly, really listens, sets healthy boundaries and keeps a calm tone, natural eye contact and an open posture. It is the style psychologists consider the healthiest for relationships, because it takes into account both people in the conversation.
| Style | The message underneath | What it looks like | What it sounds like | What remains afterwards |
|---|---|---|---|---|
| Passive | “Your needs matter, mine don't.” | low voice, eyes down, a reluctant “yes” | “Never mind, it's nothing, I'll do it.” | built-up frustration, resentment |
| Aggressive | “My needs matter, yours don't.” | raised tone, interruptions, criticism, threatening gestures | “You always do the same thing, you don't care about anything.” | fear, distance, repeated arguments |
| Passive-aggressive | “I won't tell you what's bothering me, but you'll feel it.” | sarcasm, pointed silence, delays | “Sure, whatever you want. As usual.” | mistrust, confusion |
| Assertive | “What I need matters, and so does what you need.” | calm tone, balanced eye contact, open posture | “It bothers me when you're late. Next time, please send me a message.” | clarity, mutual respect |
The benefits of assertive behavior
An assertive style shows up first in relationships. When you state your needs and limits directly, other people no longer have to guess, and small misunderstandings get cleared up before they turn into old grudges. Relationships built this way have more trust, because each person knows where they stand.
On the inside, assertive behavior is closely linked to healthy self-esteem. People who communicate assertively feel more in control of their own lives, have less social anxiety and less often experience guilt or a sense of inferiority. At work the same skill helps with clear decisions, delegation and balanced negotiations, which is exactly what a leader and a team that works well need.
The effects can also be measured. In a 2023 Swedish randomized trial, 210 adults followed an 8-week online cognitive behavioral therapy program built around assertiveness, either with the support of a therapist or on their own. Compared with those left on the waiting list, the participants became noticeably more assertive, and the gain was still visible a year later. Their symptoms of social anxiety had also gone down by the end of the program.
Another randomized study, carried out in 2024 with 100 students in Cairo, used 8 group sessions of 90 minutes each, with exercises in mindfulness, assertiveness and problem solving. At the end, the trained group reported less stress, less anxiety and less depression than the control group. A 2017 review of 8 studies with health professionals and students also found that assertiveness training helped them speak up more firmly when patient safety was at stake. The only group in which the effect did not appear was experienced anesthetists.
10 tips for becoming more assertive
The tips below start from small things you can try tomorrow. Take them one at a time, because assertiveness grows out of practice, not out of reading. Start with a single one.
- Talk about yourself, in the first person. Instead of “You annoy me when you're late”, try “I feel frustrated when we don't arrive on time, because punctuality matters to me”. You are talking about what you feel, and the other person has no reason left to get defensive.
- Keep a calm, firm tone. A determined message said quietly is listened to more easily than one that is shouted. A raised voice signals a loss of control and almost certainly triggers a defensive reaction.
- Look the other person in the eye. Natural eye contact and an open posture, with relaxed shoulders and your body turned toward the other person, show that you are present. Crossed arms and eyes fixed on the floor convey insecurity or hostility.
- Learn to say “no”. A refusal means respect for your own limits, not selfishness. Long excuses are unnecessary, and a simple “I can't right now, thank you for thinking of me” is enough.
- Be direct and leave irony aside. Sarcasm and hints create confusion and slowly wear away trust. In a couple, the hardest thing to ask for directly is affection itself, and there it helps to know in which love language you are asking for it.
- Listen actively and validate what you hear. Let the other person finish and show them you have understood, for example with “I understand why that upset you”. Validating does not mean agreeing, it means recognizing that their perspective makes sense to them.
- Set clear boundaries and keep them. Work out what is acceptable to you and what is not, when it comes to time, emotions or personal space. The sentence “I can't discuss this right now, I need a break” is a healthy boundary, even if the other person would like something else.
- Be firm and empathetic at the same time. Empathy is part of assertiveness. You can say “I can see you're under pressure, and I also need help this week” without playing down what the other person feels.
- Don't run away from useful conflicts. Avoidance belongs to the passive style. A conflict handled calmly brings clarity, better boundaries and stronger relationships, and what matters is how you go into it, not whether you do.
- Practice first in small situations. Start by stating a preference at a restaurant or with a minor refusal, and work your way up gradually to emotionally charged discussions. Every successful attempt boosts your confidence that you can express yourself in a balanced way.
If you want to see how your brain reacts under stress and in relationships, the BrainMap assessment page describes where it all begins.
Examples of assertive communication
The theory is simple, and the hard part comes at the moment you have to find the words, with the other person in front of you and your heart beating faster, so here is how the same situation sounds in the 3 registers.
| The situation | Passive | Aggressive | Assertive |
|---|---|---|---|
| Your boss asks you for the third time in the same week to stay late | “Fine, no problem.” | “Again? Do you think I don't have a life too?” | “I can't stay today. I can finish the report tomorrow morning, by 10.” |
| Your partner is on their phone while you are telling them something | You go quiet and give up on the story. | “You're not interested in anything I say!” | “I'd like you to listen to me for 5 minutes without your phone. It's important to me.” |
| A friend asks to borrow money again | You give it, even though you can't afford to. | “Again? I'm not your bank.” | “This time I can't lend you the money. I'll help you look for another solution.” |
| A colleague interrupts you in a meeting | You stop and say nothing more. | “Are you going to let me finish or not?” | “I'd like to finish my point, and then I'll listen to you.” |
| A parent comments on your choices | You smile and change the subject. | “It's none of your business!” | “I know you worry. The decision is mine, and I'll manage.” |
Notice what the assertive versions have in common. They are short, they start from facts and from what the speaker feels, and at the end they propose something concrete. Long explanations and repeated apologies weaken the message, because they give the other person the impression that the refusal can still be negotiated.
Below are a few assertive phrases you can adapt to your own situations.
- “I need a little time to think about it, and I'll get back to you tomorrow.”
- “I understand your point of view, it's just that I see things differently.”
- “I feel left out when plans change without anyone asking me.”
- “I'd rather we talk about this when we're both calmer.”
- “I don't agree, and I can explain why.”
- “Thank you for the invitation, this time I won't be coming.”
Assertive communication techniques
A few techniques have names and authors, because they were described in psychology books in the '70s and are still used today in therapy and in communication courses. To change the way you speak, 1 or 2 of them are enough, practiced until they feel natural.
“I” messages
The American psychologist Thomas Gordon described them in 1970, in a book about communication between parents and children, as an alternative to “you” messages, which sound like an accusation. An “I” message has 3 parts, namely the concrete behavior, what you feel and the effect it has on you. “When you get home after 10 without letting me know, I worry, because I don't know whether something has happened to you.” The other person hears information about you, not a verdict about them, and it becomes easier for them to change something. You can feel the difference from the very first day.
The broken record technique
The American psychologist Manuel Smith described it in 1975, in the book When I Say No, I Feel Guilty, and in Romanian it is also known as the “broken disc” technique. The idea is to calmly repeat the same message, in the same words or almost the same, however many arguments you are given. The salesperson insists that you also take the extended warranty, and you say “Thank you, I don't want the extended warranty”. They explain why it is a good offer, and you reply “I understand, and I still don't want it”. And so on, as many times as needed. The technique helps you when the other person is trying to win you over by wearing you down. In close relationships it is worth using sparingly, because it can sound rigid.
Fogging, or partial agreement
Smith is also behind the technique English calls fogging. When you receive criticism, you find the part of it that is true and acknowledge it calmly, without justifying yourself and without counterattacking. “You're right, today I was 10 minutes late.” The criticism loses some of its force, and the discussion can move toward a solution instead of going round in circles about who is to blame. The argument no longer has anything to cling to.
The DESC model
Sharon and Gordon Bower proposed it in 1976, in the book Asserting Yourself, for difficult conversations that are worth preparing in advance. The name comes from its 4 steps, and in an example from the office it looks roughly like this. You describe the facts without judgment (“The report arrived on Thursday instead of Tuesday, for the third time this month”), you say what you feel (“I'm stressed, because I'm left with a single day for my part”), you ask for something precise (“I'd like you to send it to me by Monday evening”) and you show what you both gain (“That way we finish on time and no longer have to stay late”).
The DESC model, after Bower and Bower (1976)
Empathic assertiveness
Arthur Lange and Patricia Jakubowski described in 1976 a form of assertiveness that begins with what the other person feels and only then moves on to your own need. “I can see you've had a hard day and I understand that you want some quiet. I would need us to talk for 10 minutes about the weekend.” It is the right version when the relationship matters a lot and the person in front of you is already tense.
When assertiveness is hard
For some people the tips above sound good on paper and impossible in real life. This is rarely down to a lack of willpower, and behind it there is often a cause worth understanding.
Social anxiety is one of the most common. The thought that the other person will get upset or judge you sets off the same alarm as a real danger, with a pounding heart and a blank mind, and a quick “yes” becomes the shortest way to switch the alarm off. That is why assertiveness training has long been part of cognitive behavioral therapy for social anxiety. If you recognize yourself here, the page on anxiety explains how we work with it.
Trauma and the way you grew up weigh just as much. Someone who learned in childhood that their own needs are a nuisance, that anger is dangerous or that love is earned by being good grows into an adult with the reflex to stay silent. A learned reflex can also be unlearned. The same happens with an abandonment wound or with an anxious attachment style, in which every boundary you set feels like a risk of being left. After a traumatic event the body can stay on alert for a long time, and a confrontation, even a small one, can trigger fight, flight or freeze reactions, which we have written about at length in the article on PTSD.
At work the brake often comes from impostor syndrome or from perfectionism. When you believe you have to earn every minute of attention, asking for a raise or turning down an extra task feels like a boldness you have not yet earned.
When assertiveness is not safe. In a toxic relationship or an abusive one, openly stating your boundaries can provoke a violent reaction. There, the priority is your safety, not perfect communication. Talk to someone you trust or to a specialist, and if you are in immediate danger, call 112.
If you want to see where you are starting from, the free test on healthy boundaries in relationships (in Romanian) is a good place to begin.
In the end, assertiveness means being truly seen, heard and respected. When you communicate clearly and in a balanced way, you honor your own needs and give other people the chance to know the real you, with what matters to you and with your limits.
With the help of neurofeedback, you can train your brain to stay calm, present and centered in tense situations, so that you can express your inner voice without fear or aggression. Begin the process of saying “yes” to your own worth and “no” to guilt, anxiety and forced silence.
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Frequently asked questions about assertiveness
What does it mean to be assertive?
It means saying openly what you think, what you feel and what you want, without offending the other person and without giving up on yourself so that they feel fine. An assertive person can say no without guilt, can ask for what they need and can take criticism without falling apart or lashing out. It shows above all in tense moments.
What is the difference between assertive and aggressive?
Both styles are direct, but they come from different places. An aggressive person wants to win and tramples on the other person's needs through a raised voice, criticism or intimidation. An assertive person wants to be understood and looks for a solution in which both their own needs and the other person's needs count. The calm tone gives it away fastest.
What does “asertiv” mean in the DEX, the Romanian dictionary?
In the DEX, “asertiv” has the old meaning of “having the character of an assertion”, that is, affirmative. The sense used in psychology today, of a person who openly and respectfully stands up for their opinions and needs, came from English, together with the term assertiveness.
Can assertiveness be learned?
Yes, it is a skill and not a fixed trait. In a 2023 Swedish randomized trial, an 8-week online program increased the participants' assertiveness, and the effect was still visible a year later. Practice in small situations, role-play and cognitive behavioral therapy are the most widely used routes.
How do I say “no” without feeling guilty?
Keep the refusal short, without long excuses, and say it in a calm tone, for example “I can't this time, thank you for thinking of me”. The first time is the hardest. The guilt you feel the first few times is normal and fades as you see that relationships do not break down because of a refusal. If the other person insists, calmly repeat the same sentence, following the broken record technique.
What are the assertive communication techniques?
The best known are “I” messages, in which you talk about what you feel and not about the other person's fault, and the broken record technique, in which you calmly repeat the same message. There is also partial agreement, through which you acknowledge the true part of a criticism, and the DESC model, with 4 steps, for difficult conversations you prepare in advance.
Sources
- Hagberg, T., Manhem, P., Oscarsson, M., Michel, F. Efficacy of transdiagnostic cognitive-behavioral therapy for assertiveness: a randomized controlled trial. Internet Interventions, 2023, 32: 100629. [online] Available at: pubmed.ncbi.nlm.nih.gov/37273933.
- ElBarazi, A. S., Mohamed, F., Mabrok, M., Adel, A. Efficiency of assertiveness training on the stress, anxiety, and depression levels of college students. Journal of Education and Health Promotion, 2024, 13: 203. [online] Available at: pubmed.ncbi.nlm.nih.gov/39268439.
- Omura, M., Maguire, J., Levett-Jones, T., Stone, T. E. The effectiveness of assertiveness communication training programs for healthcare professionals and students. International Journal of Nursing Studies, 2017, 76: 120-128. [online] Available at: pubmed.ncbi.nlm.nih.gov/28964979.
- Thomas Gordon, Parent Effectiveness Training, Wyden, New York, 1970.
- Manuel Smith, When I Say No, I Feel Guilty, Dial Press, New York, 1975.
- Sharon Anthony Bower and Gordon Bower, Asserting Yourself: A Practical Guide for Positive Change, Addison-Wesley, Reading (Massachusetts), 1976.
- Arthur Lange and Patricia Jakubowski, Responsible Assertive Behavior: Cognitive/Behavioral Procedures for Trainers, Research Press, Champaign (Illinois), 1976.
- The explanatory dictionary of the Romanian language (DEX '09), entry “asertiv”, consulted on dexonline.ro/definitie/asertiv in October 2026.