Communication plays vitally important role in lives of all individuals. Communication could be properly organized and then contribute to solving of conflict situations and other problems, at the same time poorly arranged communication might make the situation even worse. It is important to make the correct choice of the appropriate communication strategy, which is done in the frames of communication continuum. This continuum lies between two extremes – passive behaviors and aggressive behaviors. In passive approaches an individual tends to communicate in such a way that would protect the interests of another person. Aggressive strategies belong to the opposite extreme, when an individual is inclined to protect only his own interests in the process of communication. The third type of communication and behavioral strategies is called assertive communication. This type is based upon consideration of the interests of both parties. Behavior is considered to be the style of communication in its simplest form. Behavior includes both verbal and non-verbal communication. There are the three major types of human behavior: passive, aggressive and assertive. Sometimes the researchers add another two types, which are passive-aggressive and alternator. There are various types of behaviors, each of them could be utilized by the same individual on the basis of the current situation or moment of time.Sometimes people tend to mix up behavior with personality. In reality these are two different things, as individuals are born with personality and it is correspondingly related to life experience and genetics. Behavior is not the same as personality, as it is changed during the whole life, it is formed under the impact of experiences, interaction, mood, etc. at given moments of time. Most of the individuals could not be considered as belonging to one and only type, as they usually use various types of behavior in various situations. The more chances are there for an individual to communicate with other people, the more versatile his behavior types would be. Generally it is considered that the choice of assertive type of behavior is the final goal. In other words, an individual should accept the assertive type of behavior as his basic one, transforming his behavior in certain situation in accordance to the environment. For those people, whose primary type of behavior is not assertive, it is advisable to reconsider it and continue learning and improvement. It is not possible to learn the modern of assertive behavior very quickly, just to go to bed being one person and wake up in the morning being a different person. People have to go through the stages of self-evaluation, communication, analysis and then come to the conclusion about assertive behavior.