1. Put Ukulele upside down on your lap.
2. Straighten your fingers, straighten your thumb in the direction of the middle finger, do not bend, place the piano in the same position, and gently clamp the neck with your prepared left hand.
3. When holding the neck, be careful to have your four fingers flat against the fingerboard.
4. The left hand holds the piano in the same position, then turns our left wrist to the inside of the arm, so that the ukulele rises at 90 degrees, so that its back plate fits our stomach.