Draw a rectangle slightly tilted to the right as Wu Yong's body.
Draw a triangle-like shape above the body as Wu Yong's head.
Draw a rectangle on your head as Wu's hat.
Draw two circles on both sides of the head as Wu Yong's ears.
Draw two straight lines under your head as Wu Yong's beard.
Draw Wu Yong's eyes, nose and mouth
Finally, add details and shadows as needed to enhance the realism of the picture.
The above are the basic steps of Wu's stick figure, and I hope it will help you.