Increasing Question

I need to pfb, but I don’t see any instructions. Could some kind person explain how I do this? Thanks. Jeankidd

This site:
shows both how to purl into the front loop and into the back loop. In the case of pfb, you will purl the stitch as usual, then before slipping the original stitch off the left needle you will purl into the back of the same stitch, as shown in the diagrams I’ve linked. This increases one stitch.