Some basics Japanese manners:

– Before you start to eat don’t forget to say “itadakimasu”

– When you eat “noodles” it’s okay to make noise, signal that is delicious and you are enjoing your meal. If you can make it louder!

– At the end if someone else pays the bill is good to sai “gochiso samadeshita”

– When drinking alcoholic beverages, it is customary to serve each other, rather than pouring your own beverage.Periodically check your friends’ cups and refill their drinks if their cups are getting empty.

– Do not start drinking until everybody at the table is served and the glasses are raised for a drinking salute, which usually is “kampai”.

– You do not need to add wasabi into the soya sauce, because the sushi pieces may already contain it, or may be eaten plain.However, if you choose to add wasabi, use only a small amount so as not to offend the sushi chef. If you do not like wasabi, you can request that none is added into your sushi.

– In general, you are supposed to eat a sushi piece in one bite. Attempts to separate a piece into two generally end in the destruction of the beautifully prepared sushi. Hands or chopsticks can be used to eat sushi.

among many others…

Sushi on a leaf
Sushi on a leaf 2
Special miso soup
Sushi-man 2
hands on sushi