Ymir take a lot of meadhorns filled with mead.
And take a bbq in a forest or something with a lot of friends.
then drink when the last men falls(woman).
And sing some songs
Happy birthday!! And... drive carefully, especially the first two years after that, you can half-way legally kill people in traffic without necessarily loosing your license *cough* Don't take me up on that
Oh, and also happy birthday to the small boy, that REALLY just had his birthday Right, Eldzik?