What is the etiquette for eating western food and going to a high-end hotel?

You'd better not wear casual clothes if you want to dress appropriately. Don't put your elbows on the table.

The napkin was folded in half on the knee.

When eating with a knife and fork, take the knife and fork from the outside to the inside, the fork in the left hand and the knife in the right hand; When you cut something, you hold the fork in your left hand and the food in your right hand, and then cut it into small pieces with a knife, and then send it to your mouth with a fork. When using a knife, the blade should not be outward. When eating, put down the knife and fork in a figure of eight and put them on the edge of the plate respectively. The blade is pointed at yourself, indicating that you will continue to eat. After eating each dish, put the knife and fork together on the plate. If you are talking, you can hold the knife and fork. When you don't use a knife, you can also hold a fork in your right hand, but if you need to make gestures, you should put down your knife and fork, never wave it in the air with your hands, never wipe your mouth with a napkin in one hand, and never hold a glass with a fork in the other. Remember, never put one end of the knife and fork on the plate and the other end on the table.