Cappucino: breakfast coffee the italians drink but NEVER after 11am, so if you order it and dont want to look like a tourist, always order it in the morning, never for lunch or as an after dinner drink.

Espresso: good anytime...

Coffee: there is no such thing as "coffee" in italy, if you say "un cafe" they give you an espresso, you would have to say "cafe americano" if you wanted "coffee".

Only around the holidays will you see something like sambuca, amaretto or anisette to taint the espresso

Everything else is an american variation and/or starbucks invention, my favorite, was the Milky Way Mocha, which Starbucks stole from a small coffee shop and renamed the Caramel Mochiatto, which, is my fave, but a bit too sweet these days...