Beginning Purling

When making a purl stitch, first ensure that the yarn is to the front of the work.

Then insert the right hand needle into the front of the stitch from the back towards the front.

Take the yarn and wrap it round the point of the right needle over away from you and then under towards you.

Using the right needle point, pull the loop of yarn through the stitch to make a loop and allow the old stitch to slip off the end of the left needle.

I would strongly recommend you go to the knitting videos to see how to purl.