1. Lips close naturally. Hold both ends with both hands, head with left hand and tail with right hand. Place the blowing hole on the lower edge of the lip and blow air at the blowing hole.

2. When the breath rushes out, only a small gap is allowed for the breath to pass through, and an air column is made to blow obliquely below the blowing hole. Its principle is like blowing a pen cover.

3, in order to make the breath rush out of the lips, and the breath is scattered, the muscles of the cheek must try to keep the breath outlet small.