Aries: Builds a sandcastle before drinking the sea water and dying.
Taurus: Builds a raft whilst freely screaming because you'll never get the same chance to do so.
Gemini: You try to survive with what you find, you also go insane-
Cancer: You just cry, no cap.
Leo: Enjoys their free holiday/vacation.
Virgo: Builds shelter
Libra: You drink your own urine because you couldn't remember how to purify water.
Scorpio: Tans.
Sagittarius: Sends smoke signals and writes "SOS" in the sand
Capricorn: You're so paranoid all the time you would have never even got in this situation in the first place-
Aquarius: Farms the entire island
Pisces: Befriends all the animals.