Play Jacks.
Sit round in a circle and turn over a card for each player. The 1st person who gets a Jack has to choose a few ingredients of a alcoholic drink. (Half a lager, shot of vodka, shot of gin topped up with fresh orange etc)
The 2nd person to get a jack goes and buys the drink
The 3rd person to get a jack has to have a taste of the drink
The 4th person to get a jack downs it.
Probably not what you had in mind if you were thinking about saying somehting on the line of "I bet �1 that the 18th card is a heart" but hey, mines still a good game!