the best thing i can tell you is to study the customs before you go. and above all else be polite!!! Tje Japanese are a polite and friendly people for the most part and expect the same from their guests. Also if you are staying with a famile of in an inn and they serve you food DO NOT automaticlly reach for the soy sauce or any other spices it will insult the host. they had prepared this meal just for you.