As a result, you should refrain from biting your fingernails or using your nails to remove food from your teeth. It will disgust the Chinese. As a businesswoman or the wife of a businessman, there are certain things that you should not do. It is only acceptable for you to smoke at banquets and parties. If you are offered an alcoholic drink, you can accept it, but take only a sip and leave the rest.
Good posture is important.
Do not put your feet on a desk or chair and do not use your feet to point at something or to move objects. Pointing is done with the open hand, not with one finger. The gesture for beckoning someone is done with the palm facing down and the fingers moving in a scratching motion.