Any type of shot will do, over grass, or carpet, or such. You also may want to prepare some shots instead of making one at a time.
This is a simple game that is best played when NOT in a bar, preferably over a carpet where there is no fragile expensive things you care about/care about paying for (that is dependant upon where you play it of course). Have one person put one hand over there body horizontally while the other grabs the nose, while bending over. Spin and attempt to count for how long before he falls down. Then the next person is up. Who ever did it longer, the other person takes a shot and starts in the next round. Don't expect to be ready to do anything the next morning.