Painting posture: the correct sketch posture is helpful to the overall observation and the application of expression methods: when painting, the body should be about one arm away from the drawing board.

If possible, you'd better put the drawing board on an easel. If there is no easel, the drawing board can also be placed on the thigh. Pen holding posture:

The method of holding a pen in drawing is different from that in writing: the usual method of holding a pen is to hold a pencil with thumb, forefinger and middle finger, and the little finger is supported on the drawing board as a fulcrum (or suspended). When drawing a line, the wrist moves and the finger does not move, so that the line drawn is straight; Only when describing the details will you hold the pen as usual, but you will still move your wrist with the fulcrum of your little finger.

You can practice these gestures repeatedly at first, and then you can start drawing objects after you are proficient in straight lines and horizontal and vertical directions.