It is bad manners for a host not to keep a guest's plate full, and it is even worse for a guest not to continue eating as long as the plate is full. Always leave some food on your dish after you are finished with each course. Otherwise the host will continue refilling your plate or bowl. Be sure to reciprocate with a banquet of equal quality. Your hotel can assist you in preparations.
Rice is served as a filler.
Do not eat large amounts, which implies the host has not served enough food. Lay your chopsticks on your chopstick rest or neatly on the table when you are finished eating. Never stick them in a bowl of rice. Don't be afraid to dirty the tablecloth. A plate may be provided for this purpose.