Do I look Korean?

Ok, so my mom, dad and I went out to a Japanese restaurant to eat. We walked in the door.

Waiter 1: An nyoung ha seh yo ( hello in Korean I think), followed by fluent korean.
Us: O_O ummmm...no speak korean
Waiter 1: Oh sorry, would you like a table?

So after we sat down another waiter comes.
Waiter 2: An nyoung ha seh yo, followed by fluent korean.
Us: >.< were not Korean.....
Waiter 2: oh sorry.... then later another waiter comes

Waiter 3: An nyoung ha seh yo, followed by fluent Korean.
Us: (Sigh) WERE NOT Korean. (sigh)
so when we leave.....
Everyone: An nyoung ha seh yo!

Ok, so I have to ask......DO I LOOK KOREAN!? I mean seriously four times, in a Japanese restaurant!