7) Second Helpings
The hostess may or may not ask if you would like a second helping, according to the formality of the meal. If she does and you accept it, you should pass your plate to her or to the servant with the knife and fork still lying on it.
8) The Salad Course
A salad is eaten with a fork only held in the right hand with points turned up. There is usually a special one for the salad, a little smaller than the meat fork.
9) Bread and Butter
Bread is taken in the fingers and laid on the side plate or the edge of the large plate, it is never take with a fork. Butter is taken from the butter dish with the butter knife and placed on the side plate, not on one's bread.
10) Other Things on the Table
When there are things on the middle of the table, such as bread, butter, jelly, pickles, nits, candies, you should not take any until the hostess ahs suggested that they be passed.
11) Leaving the Table
It is impolite for a guest to leave the table during a meal, or before the hostess gives the signal at the end. When the hostess indicates that the dinner is over, she will start to rise from her seat and all the guests she rise from theirs at the same time.
12) Various rules and Suggestions
Sit up straight on your chair;
Do not put much food in your mouth at a time;
Drink only when there is no food in your mouth;
Try not to get into your mouth anything that will have to be taken out;
Do not make any nose when you eat;
Do not clean your teeth at the table or anywhere in public, either with your finger or a tooth pick(牙签), not even with you tongue. 商务礼仪―― Table Manners(2)