Pendulums are used to find the answers of yes and no questions. You ask your higher self so that you get the truth and not what your heart wants. Hold the pendulum in the opposite hand to the one you write with. Ask your higher self to show you a YES, STOP. Show you a NO. It will move differently for different people. Ensure you are not emotionally attached to the question. Ask your higher self for the truth. Photo is a sample. Can vary depending on what is available at the time. But all true crystals.