Seconding this - you'll be fine. The only real unpleasant stereotype that you hear about Americans over here is that they're rude and ignorant. Not only is this a foolish view to hold, it's also one that you can easily avoid anyway by just being the decent people that you doubtless already are . Most people aren't interested in discussing politics with strangers either, so you'd be unlikely to encounter uncomfortable discussions - and people will respect a polite request to leave a topic alone. Come and see the sights! You'll have a great time