Yesterday I was at a banquet that was serving sushi rolls. Some had rice on the outside and others had seaweed on the outside. I wasn't able to find chopsticks. In terms of etiquette is it alright to eat sushi by hand? If relevant I'm in North America.
Also, I heard it's a North American thing to mix the wasabi with the soy sauce before dipping the sushi in. How is the soy sauce and wasabi intended to be used?
It's my understanding the ginger is to reset the taste pallet so you should eat a little before switching to a different roll.
EDIT: but if you're provided with chopsticks, you should use them, right?