As an American white dude traveling full time, I haven’t really gotten any of this yet personally. I have sat next to some really loud Americans and felt irritated at them, but the same goes for the British lady who walked into a cafe I was in and loudly insisted they make her a sandwich that wasn’t on the menu.
Most people are kind and curious. Those who aren’t, regardless of nationality, are the ones who irritate the locals.
Of course, the world is big and I obviously haven’t been everywhere. In each place I have been to, though, learning a few words and being extra polite goes a long way. Locals welcome you and return the curiosity and respect.