Position: the left palm is flat, the palm is up, and it does not move. Make a fist with your right hand and put your thumb in the palm of your left hand.
Teacher: Two hands and five fingers cooperate, the fingertips are opposite, the back of your hand is outward, and you can shake it back and forth on your chest a few times to show the meaning of teaching. Make a fist with your right hand and put your thumb on your chest.
Ok: Give me your thumb.
We: point to ourselves with the index finger of the right hand, and the index finger stands for "I". The palm of the right hand is flat, the palm is down, and it rotates clockwise around the chest, indicating "everyone". Together, it is "we".
Singing songs: Hold your throat with your right index finger and swing your head rhythmically from side to side.