Someone once told me that the way they can always tell if someone is an American traveling abroad in their country is that they always have this stupid shit eat

Someone once told me that the way they can always tell if someone is an American traveling abroad in their country is that they always have this stupid shit eating grin on their face and most everyone else keeps a neutral expression. If you are out of your cultural element, you can cross the line into apparent insincerity with surprising ease. Always know thyself.