Dining
Follow the leader. Follow cues from the host and start eating when the host does. Wait to be invited before you start to eat.
The host will begin a meal with a toast of your business deal, friendship, presence or cooperation. Typically, the principal guest is expected to toast a few courses after the host does a toast. Make sure your toast is sincere and is not longer than the host's.
The host will pay the bill. If you are hosting a meal, do not show your money if front of your guests. Have someone else slip out and pay the bill or wait until you guests leave before paying the meal.