I should just wear a sign

Today at church I was asked by three different people about my racially ambiguous "ethnic-ness".

The "I'm going to guess till you tell me" approach: 
Dude: You look like you have some polynesian in you.
Me: Oh, hello. No.
Dude: Latin?
Me: Nope.
Dude: ...
Me: The usual explanation
Dude: That's so neat. You are very pretty.
Me: Thanks, my name's Emy.
Dude: I'm so-and-so.
I really don't know how these conversations ever start before regular introductions.

The "up front and direct", and only starting up the conversation in the first place to satisfy curiosity: 
Gal: Hi I'm so-and-so.
Me: Hello, I'm Emerald.
Gal: So, what ethnicity are you?
Me: The usual explanation
Gal: Wow, cool.
Me: Yup.
She didn't have anything more to say, so I left for class. I think she wanted me to ask about her ethnicity too, seeing how she was also ethnic in some way. But I really didn't care to stand there and talk about that. It really gets boring so fast.

The "round about, in the middle of a conversation already, not wanting to seem to interested but really is":
Guy: So Emy, where are you from?
Me: Southern California.
Guy: Oh ya? What part?...ya I've heard of there....do you know the -family last name-.... ya it's a nice place
Me: Ya, I loved it.
Guy: So, where is your family from?
Me: My parents both grew up in Washington.
Guy: Oh ok, but like, where are they originally from?
Me: Oh, you mean like, what ethnicity?
Guy: Well, ya.
Me: usual explanation.
Guy: Oh, that's neat, blah blah blah...
Yes, I usually know from the start what they are trying to ask me, but really, where's the fun in letting them off easy.

Anyway, that's what happened today, and most days I meet new people. I really don't mind at all, and I'm really used to it. It's just funny how some people go about it.
But here is the best one.
A couple years ago I was waiting for my food at the Cougar Eat/cafeteria  at school. There was a guy standing next to me, also waiting.

Guy: Hey there.
Me: Hi
Guy: I like your colors.
Me: Oh my clothes? Thanks.
Guy: Oh, um, well, uh, ya, that too.

WTF