How do I make stockinette stitch in the round after doing the ribbing? Do I just keep knitting or do I start purling after I knit one round? Do I turn my work? Help!
Just keep knitting for however long you require. If you purl, knit, purl, knit, … the rounds you get garter stitch. Just remember depending on how you are knitting the fabric you are always looking at the right (public) or wrong (private) side.
You may want to look at this page: