Beer.
Singing, fellowship and a lot of beer.
A known tradition is to take the child and pick them up from upside down and give them a little bump on the head. for every time for its age symbolizes...
Well i don't really know what they do for the grown ups butfor little kids they lift them up and bump their kids head on the floorlightly for good luck.That is all i know and im doin a report on...