A wireless communications device comprising: a set of antennas ; a narrowband transceiver coupled to a first member of the set of antennas ; and a broadband receiver , coupled to a second member of the set of antennas , the broadband receiver configured to receive a digital signal from a second wireless communication device, wherein the digital signal comprises connection information from the second wireless communications device; and processing circuitry, coupled to the narrowband transceiver and the broadband receiver , the processing circuitry configured to: process, in response to receiving the digital signal, the connection information received by the broadband receiver , the connection information comprising an identifier for the second wireless communications device; identify, based on the identifier, a user of the second wireless communications device, the user being a social-networking user of a social-networking system , the social-networking user being associated with the second wireless communications device; detect, based on the identifier, that the user is within proximity of the wireless communications device ; establish a communications channel for the narrowband transceiver based on the connection information; and retrieve social-networking information using the narrowband transceiver over the narrowband communications channel. a set of antennas ; a narrowband transceiver coupled to a first member of the set of antennas ; and a broadband receiver , coupled to a second member of the set of antennas , the broadband receiver configured to receive a digital signal from a second wireless communication device, wherein the digital signal comprises connection information from the second wireless communications device; and processing circuitry, coupled to the narrowband transceiver and the broadband receiver , the processing circuitry configured to: process, in response to receiving the digital signal, the connection information received by the broadband receiver , the connection information comprising an identifier for the second wireless communications device; identify, based on the identifier, a user of the second wireless communications device, the user being a social-networking user of a social-networking system , the social-networking user being associated with the second wireless communications device; detect, based on the identifier, that the user is within proximity of the wireless communications device ; establish a communications channel for the narrowband transceiver based on the connection information; and retrieve social-networking information using the narrowband transceiver over the narrowband communications channel. process, in response to receiving the digital signal, the connection information received by the broadband receiver , the connection information comprising an identifier for the second wireless communications device; identify, based on the identifier, a user of the second wireless communications device, the user being a social-networking user of a social-networking system , the social-networking user being associated with the second wireless communications device; detect, based on the identifier, that the user is within proximity of the wireless communications device ; establish a communications channel for the narrowband transceiver based on the connection information; and retrieve social-networking information using the narrowband transceiver over the narrowband communications channel. <EOS>