It is not good manners to pick up too much food at a time. You should behave elegantly. When taking food, don’t nudge or push against your neighbor. Don’t let the food splash or let soup or sauce drip onto the table.
When eating, you should close your mouth to chew food well before you swallow it, which is not only a requirement of etiquette, but also better for digestion. You should by no means open your mouth wide, fill it with large pieces of food and eat up greedily. Don’t put too much food into your mouth at a time to avoid leaving a gluttonous impression. Neither should you stretch your neck, open your mouth wide and extend your tongue to catch food you are lifting to your mouth.
When removing bones or other inedible parts of the meal from your mouth, use chopsticks or a hand to take them and put them on a side plate (or the table) in front of you, instead of spitting them directly onto the table or the ground.
If there is food around your mouth, use a tissue or a napkin to wipe it, instead of licking it with your tongue. When chewing food, don’t make noises.
It is best not to talk with others with your mouth full. Be temperate in laughing lest you spew your food or the food goes down your windpipe and causes choking. If you need to talk, you should speak little and quietly.
If you want to cough or sneeze, use your hand or a handkerchief to cover your mouth and turn away. If you find something unpleasant in your mouth when chewing or phlegm in the throat, you should leave the dinner table to spit it out.