Everyone needs to buy a can of beer. All cans must be the same make

All stand in a circle and place your can in front of you

Now everyone must turn around and face outwards while the Chairman or other designated person shakes 1 of the cans very very vigorously and moves all the cans around.

The Chairman designates the first person to go, they can either take the can in front of them or choose to swap their can with any of the others. They must then hold the can to their head with ring pull facing their forehead and open it.

If it was a blank then play continues in a clockwise direction.

It will be perfectly obvious to everyone when you reach the "live" one.