Add circles for the eyes. Sketch a V-shape lying on its side for the nose. Use two ovals (one pointed and one flattened on the bottom) and parallel lines for the horns. Draw a half circle for the chin. Connect a very short curved line to the top of a much longer curved line for the smile.
Form each front leg with a U-shape, two short lines, an oval, two longer lines, and a circle. Place a curved rectangle under each front leg for the hoof. For the rear legs, sketch L-shapes and ovals. Add curved triangles for the hooves.