Abstract: An apparatus for determining a relation between a user and a group of people, comprising: a) a group characteristic receiver, configured to receive at least one group of characteristics pertaining to a respective predefined group of people, b) a user data receiver, associated with the group characteristic receiver, and configured to receive data in respect of at least some of the characteristics from a user, and c) a group relation determiner, associated with the group characteristic receiver, and configured to automatically determine a relation between the user and the predefined group using at least some of the characteristics pertaining to the identified group of people and corresponding data received from the user.