SMIRKS, PLEASE REMOVE THIS AS I DIDN'T FIELD TEST IT PERSONALLY.
This is something I saw a friend of mine do up here in Wichita Falls (college town) and it worked for him. I was kinda blown away. This is very direct and confrontational. He kept the tone very light and fun though. I have not field tested this personally, but I thought I would share it.
PUA: Walks up to HB. Hey my name is Goober and I just wanted to compliment you. Your looking good.
HB: Whatever!
PUA: But I am only interested in smart girls..... ( trail off....)
HB: WTF?! I'm smart.. blah blah.. I going to school for xyz..
PUA: Really? That's awesome! I guess I could give you my test.
HB: What's the Test?!
PUA: (Insert stupid Trivia question here)
HB: (answers stupid trivia question here)
PUA: Well, That was close but you still got it wrong. Give me your number so I can tutor you! (she gave him the number)
It worked on a 2 set - blondes. One a 6 and one a 7.5/8. He approached the 7.5/8.