Don't cross your utensils. In case you haven't ever watched a mob movie/been to Hoboken, the holy cross is an important symbol to Italians. Placing your eating utensils on top of each other at perpendicular angles is seen as an insult to the religious symbol, and bad luck.
Eat whatever is offered. Doesn't matter if it's a curry you're pretty sure was made with battery acid. You accept it, you eat it, and you compliment the chef between your tears.
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