I once brought a bento to school, and everyone thought it was really cool. But, there's always the kids that are 1 grade higher than you that sit next to you at lunch, and they kept saying, "Hey, girly-boy!" (i have long hair, which is the reference to girly boy) "Are you asian?" I usually just ignore them, or go, "Do I LOOK Asian to you?"
Some people think i'm one of those Naruto geeks who sit around reading fighting manga like Naruto all day. I just say, "A: i don't like naruto. B: Naruto isn't the only manga out there. C: I'd rather watch anime than read manga."
And when i say i can speak japanese, the usual response is, "Does this mean anything? Ching pang ping pong!". That REALLY pisses me off.