用英文回答If you are invited to a western dinner,how do you know

用英文回答If you are invited to a western dinner,how do you know that the dinner starts?

American table manners
Chew with your mouth closed.
When a dish is presented,the food is served to one's plate and then passed on to the next person.
Do not talk at an excessively loud volume.
Never leave home hungry.Leave for your destination at least half full just in case your host is late in preparing dinner or the food is displeasing.
If at all possible,refrain from coughing or sneezing at the table.
Never tilt back your chair while at the table,or at any other time.
Tea or coffee should never be poured into the saucer to cool but should be sipped from the cup.Alternatively,ice may be used to cool either.
Do not make unbecoming noises while eating.
Do not play with food or table utensils.
Do not put your elbows on the table or slouch.
The fork is used to convey any solid food to the mouth.
Eat soup noiselessly and with the side of the spoon.
Do not eat food with your fingers unless it is finger foods such as bread,fries,chicken wings,pizza,etc.
Do not start eating until at least two people are served.Alternatively,wait until the host/hostess lifts his/her fork (or spoon).
The fork may be used by either the left or the right hand.
When serving,serve from the left and pick up the dish from the right.Beverages are both served and removed from the right.
Always ask the host or hostess to be excused before leaving the table.
A prayer may be customary in some families,and the guests should join in even if they are not religious or do not follow the same religion.Most prayers are made before the meal is eaten.The Hutterites pray both before and after a meal.
When using paper napkins,never ball them up or allow stains to show.
Keep napkin on lap.
Never ask for a doggy bag when having a formal dinner.
When at formal dinner it is not required to finish plate.
When at an informal dinner,ask for a box when full.
Never talk on your phone at table.If urgent,ask host or hostess to be excused,and go outside.Apologize when returned.
It is acceptable in most places to not finish all of the food on your plate.
Scandinavian countries follow very similar rules.