7. Seek out the specialties
Ask what the restaurant is known for, or if there are dishes that are particularly indicative of the restaurant's style. It will be viewed as a sign of respect and also allow the chef to put his best foot forward.
8. When in a traditional sushi bar, sashimi should be ordered before sushi
This comes from Morimoto camp, so you know it's ironclad. Work your way up to rolls: they're considered the main course. And while it seems like you might want to start with a bowl of miso, traditional chefs would serve this last.
Dan Gentile is a staff writer on Thrillist's national food/drink team. He has eaten more grocery store spicy tuna than he would like to admit. Follow him to dreams of sushi at @Dannosphere.