It depends on what dance machine you are playing. If you have three keys, your feet have to control three keys, and your hands have only two directions. Four-key hands must be controlled back and forth; There is also a hands-free one. In short, the keys on the dance machine are all stepped on with your feet (unless you can dance with your hands). When the moving arrow on the screen coincides with the arrow in the top row, you press the key in the corresponding direction or swing your hands in the corresponding direction, and the arrows of your hands and feet are obviously different. If you still don't understand it, I suggest you play a dance troupe first, and beginners can practice more. Hey, hey, come on!