Japanese are noted for tolerance and grace so if you make a bit of a mistake don't feel bad. Just pay attention to what everyone else is doing. Here is a good website to go too that will give you...
Maanners are more or less dictated by common sense and how you yourself would like to be treated . Etiquette is more precise behavior dictated by certain segments of society, different cultures,...
Basic table manners should always be in use in some form . Some may be overlooked for very informal things like picnics and barbecues , and use your very best manners for formal diming.