Aries: Little sideways glances 

Taurus: Make you food :P 

Gemini: Tells you everything 

Cancer: Lots of touchy flirting 

Leo: Shows off SO FREAKING MUCH it's insane 

Virgo: Tries to help you with everything even when you don't ask 

Libra: Just complete total 100% flirting 

Scorpio: Stares at you when you're not looking 

Sagittarius: Probably flat-out tells you 

Capricorn: Just tells you weird random facts and horrible jokes 

Aquarius: Ignores you 

Pisces: Asks you lots of questions and tries to make you smile