Step 11: That's it for the initial sketch of Goofy! You have the basic Goofy shape, and now you will go in and tighten your drawing. From this point on, press harder with your pencil in order to get darker lines and a more defined sketch.
Step 12: Darken in the top part of his mouth, making all the lines rounder. Draw in two small arcs on the end of Goofy's smile (underneath the two small upside-down U shapes) to represent his laugh lines. Also draw a curve above Goofy's nose.
Step 13: Draw in Goofy's teeth. When you draw the lower part of Goofy's mouth, extend one of the left lines further down to make his chin. Also draw two curves inside his mouth to make his tongue.
Step 14: Draw in Goofy's ears, which are basically two lines that come out of the side of his head. They droop down and continue below his mouth. To draw the lower part of them, just draw really long U-shaped curves below Goofy's mouth. Do not draw these loops over his snout. The ears are behind his snout, so these lines are not seen.
Step 15: Now darken in Goofy's head and his eyes. Draw in two ovals inside his eyes on either side of the vertical construction line. These are his pupils.