SoulCycle addicts: you've got your favorite bike, favorite instructor, favorite studio . . . but do you know all there is to know about your gloriously white-and-yellow, grapefruit-scented studio? They'll celebrate your birthday with you, hook you up with socks (or anything else you forgot to bring), and even go so far as to make sure your SmartWater is perfectly prepped for your drinking convenience. Don't know what we mean by that? Dive into these fun facts and Soul secrets we grabbed from Natalie, one of our favorite instructors from San Francisco.