Device, process and program for determining and alerting a user of the existence of nearby acquaintance, including: providing a first electronic communication device having near-field transmitting and receiving communications capability, a user interface and control circuitry; transmitting from the first communication device an inquiry to determine the presence in the near-field of a compatible second electronic communication device; upon receipt of a positive response to the inquiry, transmitting from the first communication device anonymous user indicia; receiving anonymous user indicia from the second communication device; coordinating the received anonymous user indicia to determine the presence of any matches between the transmitted anonymous user information and the received anonymous user indicia; and providing either a list of matches or an indication of no matches to the user via the user interface. Based on the information exchanged, the users can determine whether a relationship between the users exists or might be created.