CODDEIX (COllaborative Digital devide for DEIXis) allows several people, even with physical distance, to study video recordings of social interactions. These analyses focus on the corporal attitudes of the people filmed, gestures with more or less amplitude, trajectories, physical contacts or avoidances. In collective analysis sessions where each participant is physically dispersed, the main interest of CODDEIX is to identify who shows what, i.e. to allow everyone to point out the details that hold their attention and to communicate them to the other participants.