2. Never accept a compliment graciously
You may find yourself at a loss for words when you compliment a Chinese host on a wonderful meal, and you get in response, "No, no, the food was really horrible." They expect you to say works like " mama huhu(马马虎虎)" or " Na li, Na li哪里哪里" whenever they tell you words like, "your Chinese is very good" while some will say, "your Chinese is very guda" (No, disrespect but just keeping it real).
These people aren't being nasty . . . just humble and polite. A little less boasting and fewer self-congratulatory remarks go a long way towards scoring cultural sensitivity points with the Chinese.