G.15. Who's Missing

Small prizes, such as sweets, can be used for this game (optional).
The group is seated, at random around the room; one person, A, goes out.
The group moves around, changing places, and one more person, B, leaves by the other door, or hides.
A returns and has 20 seconds to guess who’s missing. If s/he does s/he wins (a small sweet, if you wish to give prizes), if s/he doesn’t, B wins.

Variation:
Add consequences/forfeits for the loser (usually: actions to do).