Cast on 20 stitches (sts)
Hold the needle with the stitches in your left hand. Hold the empty needle in your right hand, looping the yarn round your fingers for correct tension.
Insert the point of the right hand needle through the first stitch from the back to the front. The yarn is at the front of the work.
Using the forefinger, bring the yarn round over the point of the needle, close to the stitch. With the right hand needle tip, draw a new loop away from you through the stitch. Keep the new loop on the right hand needle and slip the left hand needle out of the stitch. You have purled the stitch. Purl the next stitch on the left hand needle in the same way, purl the II stitches on the needle.
If you compare your piece of purl knitting with your piece of knit stitch knitting, you will see that they look rather similar. It is the combination of knit and purl stitches that make all the different patterns and fabrics.