But you don't go around and think "this is an American" and "oh, here is another American, she will act the same as the guy before". Instead your internal heuri

But you don't go around and think "this is an American" and "oh, here is another American, she will act the same as the guy before". Instead your internal heuristics notice more markers like age, gender, clothing, dialect, socio-economic status and class. An older person in a suit will be approached differently by you than a drunk redneck/ghettokid/punk/hells angels, even when they are the same ethnicity.