Have these tools handy:
Practice pad of paper (this can be anything from printer paper to professional sketching paper)
Music, ambient noise, scented candles, or silence—whatever helps you stay relaxed and focused.
Set yourself up at a place where you will be comfortable and that has a hard, flat surface, such as a table or a desk. Also make sure to give yourself adequate lighting. Once you're comfortable, you're ready to begin.
Step 1: Looking at the Whole
Step 2: Partition
Make your horizontal partition travel through the center of the eyes. Two lines—one above and one below the eye—will tell you how tall to make the eyes.
Additionally, you may draw a line to indicate where the eyebrows would be in a neutral, resting position, where the tip of the nose falls, and where the mouth would rest beneath the nose.