Psst… want the inside scoop on how to suss out if someone has a crush on you, breed some feel-good vibes on a date, or even figure out whether that cute person sitting across from you is dying for a kiss? Believe it or not, the answers to all these questions and more can be found in the mysterious science of body language. Allan Pease, author of The Definitive Book of Body Language, has been studying the messages people send with their eyes, hands, posture, and more for years. Below, we’ve asked him to answer some of the most common questions that trip people up in the dating game. Trust us, this info will come in handy.