Aries: watches from a far distance and kind of just groans
Taurus: is super shy about it but is also fu*k*ng adorable at the same time
Gemini: HEY F*CK*R YOU'VE GOT ONE HELL OF A PERSONALITY!
Cancer: compliments them, then backs off, then compliments them again, then backs off, then compli....
Leo: flirting? HA! Leo's are too shy to flirt
Virgo: makes a lot of f*cking innuendos
Libra: you know, you look a lot like a fictional character that I really like-
Scorpio: I'm hot, your hot, lets go cool of together :)
Sagittarius: DO YOU WANT TO HAVE A RELATIONSHIP IN WHICH BOTH OF US COMSENSUALLY KISS AND CUDDLE AND MAYBE HAVE THE SEXIES? Crap, too forward
Capricorn: is actually a really good flirter! How do they do it?
Aquarius: they don't need to flirt, everyone else flirts with them
Pisces: gets all flustered and blushes

(Featured pic: Sagittarius)