1. FEW PEOPLE ARE IMPRESSED BY US
Unless you’re speaking with a real estate agent or a prostitute, chances are they’re not going to be excited that you’re American. It’s not some badge of honor we get to parade around. Yes, we had Steve Jobs and Thomas Edison, but unless you actually are Steve Jobs or Thomas Edison (which is unlikely) then most people around the world are simply not going to care. There are exceptions of course. And those exceptions are called English and Australian people. Whoopdie-fucking-doo.
As Americans, we’re brought up our entire lives being taught that we’re the best, we did everything first and that the rest of the world follows our lead. Not only is this not true, but people get irritated when you bring it to their country with you. So don’t.