1. A system comprising: a plurality of identification units, each of the plurality of identification units being associated with a different one of a plurality of participants and configured to be carried by the plurality of participants at a conference; and a monitoring station that is configured to receive signals from the plurality of identification units, to determine locations of each of the plurality of participants based on the signals from the plurality of identification units and associate a timestamp with the locations of each of the plurality of participants to provide associated timestamps for the locations of each of the plurality of participants, to store the locations of each of the plurality of participants and the associated timestamps, and to analyze the locations of each of the plurality of participants to determine an activity of the plurality of participants, wherein the monitoring station is further configured to: determine that at least two of the plurality of participants have interacted with one another in response to identifying that locations associated with the least two participants were in close proximity to one another and have associated timestamps that overlap for at least a predetermined amount of time; and receive a request from at least one of the at least two of the plurality of participants that have interacted with one another to provide information about at least one of remaining ones of the at least two of the plurality of participants that have interacted with one another.