G.2. Freeze Improvisation

Two group members begin a dramatic improvisation on any theme.
Any group member may yell “Freeze”, at any time. At this point, the two actors freeze in the position they find themselves.
The group member who shouted “Freeze” taps one actor on the back, at which point that person leaves the improvization and the group member assumes the identical exact physical position.
S/he then starts a new improvization and the game continues in this fashion, until a variety of scenes are improvized.