What is Muscle reading?

   A "mind-reading" technique, muscle reading depends on careful attention to involuntary muscle movement. A blindfolded percipient interprets the pressure of a subject's hand on his shoulder as he approaches an object silently thought of in advance by the subject, whereas an unbound per­cipient watches the subject's face for unintentional signals indicating whether he has made a correct guess. Muscle reading is not considered a psychic ability but a parlor trick that can be picked up with sufficient practice.