Aries: Tries to go on a joy ride to celebrate eternal freedom but can't get moved on the roads because of all the abandoned cars. Cries because the idea of being the last person on earth is better in theory than reality.
Taurus: Refuses to leave their house or act like anything has changed. Tries to go on with life as if normal and is probably in the biggest state of fucking denial there has ever been.
Gemini: Thinks about life's great questions while rooting through their favourite celebrity's abandoned house, drinking their champaign and humming to We'll Meet Again.
Cancer: Spirals because everyone they love is gone. Tries to keep everything that meant something to them to the point where they can't move around.
Leo: Panics because there is no longer anyone to stroke their ego and resorts to befriending animals.
Virgo: Immediately collects supplies and finds somewhere to hold up until someone saves them. It'll be a long fucking wait.
Libra: Overcomes the fact that they're terrified and goes off to break into their friends' houses. Reads their journals to find out what they really thought of them.
Scorpio: Retreats into a spiral of loathing at the predicament and leaves strange poems and messages on walls incase someone find them. Even in death they'll fuck with your mind.
Sagittarius: Packs a bag and goes off to explore the world without the inconvenience of other people's existence.
Capricorn: Dedicates their life to skulking around science labs in an attempt to find out what the fuck happened. Probably goes a lil bit crazy with it.
Aquarius: Writes a detailed journal of what happened to the planet and their experiences in this new world for when the aliens find the wreckage.
Pisces: Probably freaks out thinking about all the pets locked in houses without food and hysterically tries to free every pet in existence.