To enable a user to always make contact with a person in a place where the user wants to go, by releasing the user from the physical constraint and temporal constraint of a personal action range.

A virtual space (virtual world) corresponding to the geographical position of an actual world (real world), that is, the virtual world corresponding to the geographical position designated by a user (Mr.D) is displayed on a portable telephone 2, and an avatar C of another user (Mr.C) in the real world of the geographical position is displayed so as to be overlaid on the virtual world. Thus, it is possible for Mr.D and Mr.C to make a conversation.