Disclosed herein are systems, computer-implemented methods, and tangible computer-readable storage media for automatically initiating online social interactions based on participation in a conference call. Audio of the conference call is analyzed for data, such as timestamps indicating when people spoke, the volume of speech, words per minute, and emotional context. This analysis determines relationships between participants, and initiates online social interactions compatible with those relationships. This initialization can take the form of a prompt, or can be performed without interruption to the participants.