Dear Tony,
I am glad to know that you are coming to China. As you know, there are great differences between Chinese culture and American culture. Here I would like to tell some of the differences.
Firstly, when we meet our fri, we say hello to each other as you do in US. But we seldom hug each other. Only intimate lovers will do that in China. Secondly, when we have meals, we should never stick your chopsticks upright in the rice bowl. That is very rude. And never use the chopsticks to knock the tray and the bowl. Chinese think only beggars will do so.
Hope it helps. Look forward to seeing you.
Yours,
Li Ming