Aries: turns the other way and runs
Taurus: Would say hi then walk away
Gemini: shouts at them from half a mile away
Cancer: would approach them and talk to them for a minute
Leo: tries to act cool but ends up tripping over something
Virgo: avoids them at all costs
Libra: waves to them
Scorpio: stares at them until they make eye contact
Sagittarius: awkwardly stands there wondering what to do
Capricorn: do capricorns even go in public?
Aquarius: pretends they don't exist and continues to walk
Pisces: flips out and hides behind a group of people