China is known as a state of etiquette and ceremonies. Many proverbs have been passed down from generation to generation such as 'civility costs nothing' or 'courtesy demands reciprocity' and so on.
Meeting Etiquette
When in China greetings are formal and take care that the oldest person is always greeted first. Handshakes are common with foreigners while among the Chinese, they look towards the ground when greeting someone. Always address people by a title and their surname. Only when suggested to move to first name, you must do it. The Chinese have a terrific sense of humour and can laugh at themselves most readily.
Social distance
Every culture defines proper distance. The Chinese do not like to be touched, particularly by strangers. Do not hug, back slap or put an arm around shoulder.
Do not be offended if you are pushed and shoved in a line. The Chinese do not line up and courtesy to strangers in public places is not required.
Western gestures that are taboo in China include:
Finger snapping
Showing the soles of shoes.
Whistling is considered rude.
Dining Etiquette
The Chinese prefer entertaining in public places rather than in their homes, especially when you are a foreigner. For formal banquets they will send invitations and place cards will be at the table.
If you are invited to their house it is considered a great honour. Carry a small gift to the hostess. Arrive on time. Remove your shoes before entering the house.
Eat well to demonstrate that you are enjoying the food!
In the Chinese tradition guests should taste all the dishes and leave something on the plate at the end of the meal. It is the responsibility of the host to see that you are continually served food and drink and A clean plate indicates you are still hungry.
Keep in mind tat should chopsticks should never be placed in the rice standing up. This symbolizes death.