I'm a novice. How can I use the pendulum for divination?

Degaussing first (if the pendulum is not crystal, it is unnecessary). If degaussing, just soak in tap water for a while. Then hold the pendulum chain in your hand, first turn the pendulum clockwise by hand, and then tell it whether clockwise is optimistic and happy, and whether counterclockwise is pessimistic and negative. You can't say up and down, and you don't know about it. You can ask questions next. When asking questions, be sure to clear your mind. You can say it out or read it out in your mind. If it ignores you, put it in your bag and carry it with you for a few days to fuse the magnetic field.