This game can be played with 4 to 6 people.
All participants except one has a shot glass in front of them. One is filled with vodka or other clear liquor and the rest are filled with water.
The one person without a shot glass steps out of the room while all the others mix the glasses up. The person comes back into the room and watches everyone take their shot and has to guess which person had the vodka.
If she gets it right everyone at the table has to take a shot including the person who just had one. If she guesses wrong she must take a shot and a new round begins and will continue until she guesses correctly.
When she does, it is another persons turn.