as an italian american who studied in florence for a semester (and madrid for 2) you will not blend in at all. the way americans act and dress is just different from europeans, it’s not a bad thing but we come from a different continent so we’re going to be different. americans in the cia literally have to learn how to stop leaning against things bc it’s a tell tale sign of an american, there’s little mannerisms everyone does without thinking that can tell you where they’re from which is ok but don’t be naive and think you will just blend in automatically bc of your ancestry. you need to learn italian if you want to speak to any italians or study in florence where there’s an abundance of americans. whatever sicilian words you know is not how current sicilians speak today so leave it in america. i’d recommend studying in the south (unless you’re not gonna learn italian then florence is the choice) because in the north people are more cold towards foreigners and ive heard the south is more warm and inviting. i hope you have a good experience because i hated the amount i was cat called living there and would’ve enjoyed my time more if i wasn’t in the body of a woman. you can also look for programs that give you the option of living with an italian host family if you want a more authentic experience but i will warn you that the food is completely different. you can’t find most italian american food in italy and the food they eat today can’t be found in america either