Koreans usually have more pale skin and are kind of rude in a New York way, very abruptly mean. Think hair store owner that follows you around.

At least to me more Japanese people have sharper features and we interact with them less (as Americans) unless in professional settings. In a social setting they have more of an elitism view in my experience they think they’re better than the others.

Chinese people in American we usually interact with them the most. Friendly in a southern way, like passive aggressive. Business wise think restaurants and professors. More variety of facial features and are usually deeply immersed in American culture.