The author describes operations which characterize an individual communication style depending on interpersonal interaction activity types. Three types of interpersonal interaction - cooperation, rivalry and domination-subordination are related to the information exchange style (according to Hull), different levels of individual properties, the status, the temperament and the cognitive style. The degree of obviousness of stylistic peculiarities of the communication operations depends on the intensity in the diade. The influence of the individual communication style on the stability of the style of individual activity was researched. The stadility of the operational activity structure depends on the opportunity for the display of the initiative, which is determined by the type of interaction in the diade.