Several theoretical approaches have been offered to explain the phenomenon of reciprocity: trust-liking, social exchange, and modeling. The emphasis of previous research on self-disclosure reciprocity (descriptive reciprocation), the intimacy of the facts an individual reveals about him- or herself, stems largely from the fact that these investigations have structured the circumstances for disclosure in terms of the exchange of information. It was hypothesized that if the circumstances were changed to a conversation or if participants were concerned with increasing their attractiveness to another, other forms of reciprocity including affective reciprocity, the strength of the emotions revealed, the topical reciprocity, the degree to which a response addresses topics previously raised, might be more pronounced. Results from an experiment varying the circumstances for disclosure and the intimacy of disclosure initially received from an experimental confederate indicated that the structural difference between information exchanges and conversations was a major determinant of topical reciprocity. Affective reciprocity was influenced primarily by the desire to increase one's attractiveness. (Author)