A method of an electronic device and a method of a server are provided. The method of the electronic device includes receiving a broadcast signal broadcast by another electronic device via a wireless communication; determining, based on the received broadcast signal, a number of times the another electronic device has been detected; and sending a request for information to the another electronic device, based on the determined number of times the another electronic device has been detected. The method of the server includes receiving information from a first electronic device; receiving, from a second electronic device, an information request message relating to the first electronic device which has been detected a threshold number of times or more by the second electronic device; and transmitting information registered by the first electronic device to the second electronic device.