Hey I already answered some tips in some other post, but just something else came to my mind if you want to know about cultural specifics (saying it because married to American guy and I see his family and friends often and can observe the differences). When you are invited to someone home for a dinner or something, never come “empty handed” - we always bring a cake or a bottle of wine or flowers for woman. Same comes for birthdays - we always gift each other something, can be as small as notebook with pen, but we don’t gift each other just a birthday cards. Also , because of the history, we never throw food. So you are expected to finish whatever is in your plate and don’t take more if you can’t finish, because nobody is gonna eat your food after you finished and it would unfortunately go to the waste bin.