To play this game you’ll need a shot glass for each player and copious amounts of a colourless spirit, such as vodka.
How to Play
Fill every shot glass (but one) with the colourless spirit, before filling the final glass with water. Mix the glasses around and get everyone to pick a glass. On the count of 3, everyone must down the contents of their glass. You then start again.
If you want to take the game a little bit slower, fill more of the shot glasses with water.