Step 1:
Draw two curved, parallel lines. Draw a straight line through that. Then, make a triangle-like figure at the bottom, a trapezoid-like figure in the middle, and a semicircle-like figure at the top, using the lines as guidelines.
Step 2:
Draw the facial features. The nose is sort-of like a triangle at the bottom, with a skinnier triangle off to a side. The eyes are like a trapezoid, but with a curved bottom. The eyebrows are like rectangular shapes with a sharp line at the ends at the middle of the face. For angry expressions, a frown will appear, kind of like a W with two lines underneath. The mouth should be easy enough, and the chin is shown with several parallel lines.
Step 3:
Finish the face, and prepare for the hair. Ears are kind of hard to describe. They are between the tip of the nose and the top of the eyebrows. It's kind of like a triangle at the top, with a quadrilateral at the bottom. There will be lines to signify the ear detail, just look at my picture to get an idea. Also, start with the hairline for the characters. This will be different for every character, so look up some reference images to get an idea!
Step 4:
Hair is extremely different for every character. All I can say is: Look up the images for that character. Eventually, you'll memorize that character's hairstyle.
