The negotiation process is a complex but often necessary side of interpersonal communication. The existing differences between the cultures (beliefs, values, etc.), between people (race, religion, sex or generation), make the negotiation acquire important functions, contributing to the efficiency of communication. To this end, the present paper analyzes not only the conceptual boundaries, regarding the definition of negotiation but also analyzes the functions and stages of intelligent negotiation strategies. Psychological factors, such as empathy, emotion control, social skills, contribute to a successful negotiation. Generated by incompatibilities and inaccuracies (social or individual), negotiation is an exercise in processing cognitive information in which individuals must use a series of intra and interpersonal elements to make the right decisions; it is a form of reflective social action, in which people are concerned with the correct interpretation of messages and meanings in particular social and historical contexts. Current research is concerned with negotiation skills, at the heart of which is the concept of trust building, be it cognitive, affective or organizational. Negotiation is a complex process, which can be learned and modeled through various means.