A pendulum can be a necklace, a ring, key, watch, or crystal on a string or chain – anything that will swing freely and that is emotionally appealing.
Ground and center, and breathe deeply, from the diaphragm and belly. Holy the pendulum lightly by the top of its chain, so that it hands about two inches above the open palm of your other hand.
Relax, and tell yourself that the pendulum will begin to swing sunwise, reflecting the energy in your hand. Wait quietly. For most people, it will soon begin to circle. (While it seems to move of it own volition, actually involuntary movement of your own hand cause its motion. Don’t attempt to control it consciously – the purpose is to let your unconscious speak to you through your own muscle movements, reflected in the pendulum.
If it does not move, deliberately make it circle a few times, showing Younger Self what you want. Wait. Some people will need several sessions before the pendulum will work.)
Exercise courtesy of The Spiral Dance by Starhawk