How To Use A Pendulum – To get started, we will hold our pendulum with the tip of our index finger and thumb. To be clear, we are holding the chain (or string) that holds the pendulum just a couple of inches down from opposite end of string. Let the excess string lay in the cup of your hand. Now extend your arm holding the pendulum out about a foot or so in front of your chest. Your hand should be just about lined up with center of your chest about a foot or 2 in front of it.