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. For instance, there is an interesting short story. Once upon a time, a man went on a long tour to visit his friend with a swan as a gift. But it escaped from the cage on the way and in his effort to catch it, he got hold of nothing but a feather. Instead of returning home, he continued his journey with the swan feather. When his friend received this unexpected gift, he was deeply moved by the story as well as the sincerity. And the saying 'the gift is nothing much, but it's the thought that counts.' was spread far and wide.
Chinese used to cup one hand in the other before the chest as a salute. This tradition has a history of more than 2000 years and nowadays it is seldom used except in the Spring Festival. And shaking hands is more popular and appropriate on some formal occasions.
Bowing, as to convey respect to the higher level, is often used by the lower like subordinates, students, and attendants. But at present Chinese youngsters tend to simply nod as a greeting. To some extent this evolution reflects the ever-increasing paces of modern life.
It is common social practice to introduce the junior to the senior, or the familiar to the unfamiliar. When you start a talk with a stranger, the topics such as weather, food, or hobbies may be good choices to break the ice. To a man, a chat about current affairs, sports, stock market or his job can usually go on smoothly. Similar to Western customs, you should be cautious to ask a woman private questions. However, relaxing talks about her job or family life will never put you into danger. She is usually glad to offer you some advice on how to cook Chinese food or get accustomed to local life. Things will be quite different when you've made acquaintance with them. Implicit as Chinese are said to be, they are actually humorous enough to appreciate the exaggerated jokes of mericans.
As is said above, Chinese consider gifts as an important part to show courtesy. It is appropriate to give gifts on occasions such as festival, birthday, wedding, or visiting a patient. If you are invited to a family party, small gifts like wine, tea, cigarettes, or candies are welcomed. Also fruit, pastries, and flowers are a safe choice. As to other things, you should pay a little attention to the cultural differences. Contrary to Westerners, odd numbers are thought to be unfortunate. So wedding gifts and birthday gifts for the aged are always sent in pairs for the old saying goes that blessings come in pairs.
Though four is an even number, it reads like death in Chinese thus is avoided. So is pear for being a homophone of separation. And a gift of clock sounds like attending other's funeral so it is a taboo, too. As connected with death and sorrow, black and white are also the last in the choice. Gift giving is unsuitable in public except for some souvenirs. Yourgood intentions or gratitude should be given priority to but not the value of the gifts. Otherwise the receiver may mistake it for a bribe.