Who sits where? What sort of chairs and tables do you have? How do you sit?
What utensils are used for eating? Are there any rules about how to use the utensils? What foods require utensils and what foods can be eaten with your hands?
Are there any rules about posture? Are there any rules about chewing your food?
What are acceptable topics at the dining table?
Is slurping allowed? How noisy can your chewing be?
What are some common toasts? Are there any special rules about filling glasses?
When do you arrive at a home or restaurant? When do you sit down? Is there a particular order to what you drink or eat? When do you leave a home or restaurant? Are there any pre dining or post dining customs?
Home versus Restaurant
Are there different protocols between your etiquette at your host cultures home versus a restaurant? If so then what are they?
Do you tip? If you do tip then how much do you tip? If you are invited to dinner do you have to repay the host with a dinner.
Do you finish the plate or not? Are there any special hygiene issues?