You bet the mark a beer that you will put your pint on the floor, not under a chair, stool or table, just on the floor.You bet them a round of drinks that they wont be able to jump over it.. When they agree to the bet, simply put your glass on the floor as you stated you would, but in the corner

Another is say you balance a wine glass on a 10 euro note that is laid across 2 other wine glasses.... Just fold the note in a consitiner style and it works every time....
For a bottle of champers this one... Hold up a sealed bottle of bubbly and say that you will bet them the cost of the bottle that you can drink out of it without breaking the seal or removing the cork or breaking any of the glass...
Once agreed the bet, just turn the bottle upside down, theres a big bulge in the bottom so just tip some beer in and drink it, hey presto you have drunk from a sealed bottle

I know loads more but I am saving them to rob you all blind next time I am over

