They get really excited when they meet other Americans.
You’d think coming from a country with a population of over 320 million that seeing another American wouldn’t be all that special. However, when American travelers meet other American travelers abroad, celebrations ensue. They’ll high-five and buy each other drinks. Then, things get loud.
At first sight you may think they’ve just run into a long-lost relative when, in fact, they’re perfect strangers who just happen to understand each other’s perfectly white teeth. They’ll probably also say things like, “’Sup bro?”