A personal networking/communication device (PND) enables real-time social and business interactions/networking within a real environment. A first PND associated with a first person/user in the real environment is within communication range of a second PND. The first PND receives (via electronic communication) and displays a social interaction information signature (SIS) of the second PND. The signature includes a physical mapping/location of the second PND relative to the first PND and provides some information about the second PND's user. Following a selection of the SIS on the first PND, the first PND electronically transmits one or more “request for interaction or information exchange” (RIIE) to the second PND. When the first PND receives a response to the RIIE from the second PND, the user of the first PND receives real-time unequivocal confirmation of whether the second person is interested in interacting/socializing with the user.