1.？ Stand with your chest out and your head slightly higher. Try to play with your legs equally divided and upright. This posture can ensure the stability and flexibility of the body to the greatest extent.
2. With your arms down, make the bow naturally fall to a proper position without any external force.
3. Although the bow should be relaxed, it should have the power to move the bow freely; Don't press the strings with your index finger or bow to pursue the volume. The volume should be obtained from the consistency of bow speed and bow movement as much as possible; Try to make the head slightly higher and the bow straight. When playing connecting bow and dividing bow, the bow rod should lean forward slightly, because this can prevent the bow from shaking when transporting the bow to the middle of the bow and make the bow hair stick to the string to the maximum extent.