6. Never show up empty handed
Gifts are exchanged frequently between the Chinese, and not just on special occasions. If you have dinner in someone's house to meet a prospective business partner or for any other pre-arranged meeting, both parties commonly exchange gifts as small tokens of friendship and good will. Westerners are often surprised at the number of gifts the Chinese hosts give. The general rule of thumb is to bring many little (gender non-specific) gifts when you travel to China. You never know when you'll meet someone who wants to present you with a special memento, so you should arrive with your own as well.