The invention pertains to a terminal for exchanging messages by placing tokens near it. The terminal comprises communication means to exchange information with a database, detection means for identifying local tokens placed near the terminal, display means for displaying remote tokens, and proximity logic configured to assert a proximity relationship between tokens or between a token and a reference point. The terminal exchanges information about the topology of its tokens and that of tokens present at other terminals via the database. The terminal displays tokens present near remote copies of the local tokens, based on information obtained from the database.