Communication device for primates, in particular persons, including at least one electrically conductive first surface to be touched by a first primate, at least one electrically conductive second surface to be touched by at least one second primate, and at least primary electronic circuit electrically connecting said first surface and said second, said primary electronic circuit having: at least one detection element for measuring at least one resistance value of a secondary electronic circuit formed by at least the primary electronic circuit, a first primate touching said first surface, at least one second primate touching said second surface, and the first primate and the other least second primate touching each other, and at least one output for producing a specific signal representing the specific resistance value detected by said at least one detection element.