Stand up straight, raise your arms and find your left and right arms with your ears. Can be immediate, but also like Xinjiang dance around the neck! Why don't you try it right away?

You can try to move your page in front of the mirror and keep your head moving up and down in the process, that is, the top of your head and chin are in the same vertical line. At first, the movement may be small, but it will gradually get better.

Look at the video that the Hui people gave you.

/sxopera/lhl/ is not bad either.