I used to believe that you can tell the Chinese from the Japanese by the way their eyes slant. Eyes of the Chinese slant downwards and eyes of the Japanese slant upwards.
A childhood belief about nationalities

others believed things like this
- I was born brunette with brown eyes and dark hair, i thought people with blue eyes, had water in them.Anon
- When I was little my friend told me that if you snease with your eyes open you eyes will fall out!Anon
- when I was young I used to believe if I squinted my eyes and it was windy my eyes would stay like this forever— Jeanne
- if I watched too much TV, I would get 'googly eyes' as mom promised, and my eyes would pop out of my head.— claire
- I used to believe that if you stared into a cat's eyes, my eyes would turn that color too.— silvia
- I used to believe that if you pressed on the inside corners of your eyes that your eyes would pop out.— Sabrina