Keep your head straight, your shoulders straight, your spine straight and your chest straight.

The thighs should be relaxed symmetrically and the calves should be vertical and parallel.

Swing your feet forward and balance your arms.

Read and write well and be a good student every day.

The tiger's mouth is round, with four fingers in a line, three fingers tight and a hollow fist in his hand.

The thumb is arched, the index finger is bent, and the eyes are fixed on the small circle.

Thumb compression, middle finger top, index finger assistance.

I don't want to touch my thumb and forefinger, but leave a seam in the middle.

Key points of standard sitting posture:

1, full of energy, natural expression, eyes looking straight ahead or staring at the person you are talking to.

2, the body stretches straight, the center of gravity is vertically downward or slightly forward, the back is straight, and the hips account for 2/3 of the chair surface.

3, knees together or slightly apart, feet together.

4. Hands can be naturally placed on the legs or on the armrests of the chair.

In addition to the basic sitting posture, due to the change of leg position, you can also form a variety of beautiful sitting postures, such as parallel and oblique legs, feet folded back and forth, or feet in a small figure of eight, which can give people a comfortable and elegant feeling. If you want to cross your legs, you'd better cross your legs behind others. Women generally don't cross their legs. No matter what kind of sitting posture, you must ensure that your back is straight, and women should pay special attention to knees together.