1, the wrist should be smooth and elastic when practicing, and don't shake up and down.
2. When playing, you should follow the music in your heart and play with your fingers on the keys, so that the timbre will be more pleasant.
3. When playing Legato, it is very important to find the gap between notes. The distance between each sound needs to be thought and judged by ears. Two sounds should not be too close, too close will have a sense of adhesion; It won't be too far. If there is no intersection, it will become staccato.