You need to consider the following four ways of behavior when it comes to assertiveness −
People exhibiting passive behavior tend to the needs of others more than their own, as they think they are inferior to others. Passive people may not agree to what others say, but they usually follow others' decisions to avoid confrontation, blame, or responsibility. However, passive people suffer from self-esteem-related issues such as depression, as their needs are always overlooked.
Aggressive people believe in standing up for their rights, even if it comes at the cost of jeopardizing the rights and hurting the feelings of other people. They believe in exerting their own rights, but not in equal rights. They usually get their own way by bullying, intimidating, or being pushy with others. Over a period of time, they suffer from isolation issues, as people are unlikely to stay affectionate with aggressive people for long.
People who exhibit this behavior do it to retain some order of freedom and independence in a strongly imposed-upon environment. This is an indirect way to express hostility by being irrational, unreasonable, and sullen. These people avoid speaking out their real feelings but reveal them in far more sarcastic and hurtful ways.
People who are assertive respect their rights, and those of others. They present their viewpoints firmly and confidently, but carefully choose their words to avoid hurting people's feelings and emotions. They know to control their anger and exhibit the most appropriate behavior in any given situation.