As China becomes more open to tourists and international businesses, it becomes more convenient to travel and stay there, whether for some official or simply recreational purposes. It's easy to survive and get along with people in China since most of the Western customs are just similar to their culture. But, there are just some variations in culture that a tourist should know in order to cope well with the Chinese culture.
There are practices that sprouted from their beliefs and are therefore important to be respectfully observed. There are also things unique to the Chinese culture that are not necessarily strictly followed but will help you a lot to get along with people very well.
Always remember these impolite gestures so that you don't them in China.
a. Pointing with your finger (use your whole hand in pointing directions instead)
b. Snapping your fingers
c. whistling
d. kissing or hugging when greeting people ,unless you are very close to the person (shake hands instead)
e. using only one hand when receiving gifts or business cards, use both hands instead so that you are not mistaken to be rude and impolite
f. keeping away the card immediately after receiving it, take some moments to read the card instead to show interest in the card and the person.