Contribution presents a partial research probe into the problems of non-institutional dialogue of adults in Eastern Slovakia focused on two representative means of a personal pronouns subsystem – ja [I] and on [he]. We observe their communication use in the spontaneous communication through the prism of the adult dialogue typology (cf. Bodnárová, 2012). One of the main issues associated with the group of the personal pronouns is the motivation of the explicit expression of pronominal subject. In the contribution we reflect on this particular issue, based on the existing research of the analogous issues, above all in Slovak and Czech linguistics. Despite of this fact, it is not limited to affirmative findings and exemplification, but it attempts to deepen and complement the already known findings through their own original material. In addition to communication and pragmatic approach we also apply point of view of the personal deixis and syntax.
