Everywhere you go, there are certain dining practices, expectations, and rules. In Argentina, mate (a tea) is served in a gourd with a silver straw, and is passed from person to person around the table. In Morocco, if you take a bone from the stew, you are expected to suck out the marrow. In Russia, table settings typically include a vodka shot glass. Japanese chopsticks are different from Chinese chopsticks.
I have always found Italy pretty laid back about rules in general, but there are some “food rules” that continue to come up. Cappuccino (and coffee with milk in general) is for morning. Don’t twirl spaghetti using a spoon. (That’s for children.) And please for the love of all that is edible, do not put cheese on seafood dishes.
Some people have compiled and explained these rules, and one of the places to find them is a website called Etiquette Scholar, which can help you with dining and related etiquette just about anywhere in the world.
Life in Italy also has a post about Italian food rules, and the comments on it are fun and instructive as well.
And Conde Nast Traveler‘s website has advice for Italian dining from a couple of Italians.
I’m sure during my travels in Italy, I have broken lots of the “rules” and nobody made a big deal of it. I know I’ve had cappuccino in the afternoon. Hubby loves grated cheese on his seafood pasta. But if I see an opportunity to learn more about Italian life and culture by adjusting some dining habits, I’ll do it! Most often, Italians will be gracious enough not to point out your gaffe, but if they do, I hope you’ll be able to thank them for teaching you something new. Buon appetito!