Aries: cracking knuckles
Taurus: drumming fingers on church pews
Gemini: refrigerator hums
Cancer: the crowd before a concert starts
Leo: typing in a keyboard
Virgo: morning announcements from a school PA system
Libra: underwater
Scorpio: police sirens
Sagittarius: something on fire
Capricorn: a yawn
Aquarius: slamming a car door
Pisces: the suburbs at night in August