American Stereotype, somewhat true, not necessarily:

Guy: "Hi."
American: "Hey. Are you from China?"
Guy: "Yep."
American: "Konichiwa, you communist."

American: "Hey, you!"
Guy: "Huh?"
American: "Are you Indian?"
Guy: "...Yeah...?"
American: "You dirty Islamite!

... But anyway.

American: "You mean there are OTHER countries besides Canada and Mexico? |<3w7, d00d!"