I think it is always nice to do something like that after a really good main meal whilst there is still the promise of a really good desert... the only other advice I'd give is to be yourself and be honest.

FOOD - pick what you like
DINNER - again what you like
DRINKS - be generous
CONVERSATION - don't talk about work - talk about fun (or what you find fun)
GAMES - I wouldn't even go there
JOKES - none at the expense of others