Aries: how DON'T you tell is the real question
Taurus: Tries to act normal around and fails miserably
Gemini: Becomes your BFF
Cancer: Awkward and semi-tongue-tied
Leo: Compliments you like WAY TOO MUCH
Virgo: Nicer to you than most people
Libra: Makes you laugh or be impressed
Scorpio: Wants a lot to do with you
Sagittarius: Hangs out with you more (very hard to tell if they like you beware though)
Capricorn: They're shy but if you like them back they won't shut up
Aquarius: They prefer your company over others
Pisces: Bad flirting