To draw a piggy thinking, begin by sketching a circle for the head and a rounded body. Add facial details like big eyes and long eyelashes to convey thoughtfulness. Draw two rounded ears on the sides of the head. Then, draw a small thought bubble above the head to add a thinking touch. Depict the body lying gently, and illustrate symbols of thoughtfulness like a thinking cloud or a flower in hand. Complete the drawing with additional expressive details of contemplation.