Is funny how for a Caucasian all Asian or Africans look alike. I heard Asian said the same about Caucasians. I con only speak for my limited exposure to other Caucasians Females. IMO -leaving the attitude aside- facial hair, bossing, broadness of shoulders, hand size, Adam apple, and of course the voice.
I look pretty much like many dutch girls, thick bones, long legs, tall, little body and no facial hair, but ah my voice it gives away every time ! So I am going to go to Korea to have voice surgery.
Cheers Zenda