SLIP STITCH RULE: Unless otherwise stated, a stitch is slipped as if to purl with yarn in back. This action allows the slipped stitch to sit untwisted on the right hand needle with the working yarn hidden on the wrong side. Sometimes a designer will spell this rule out for you in their pattern. If there are no specific directions on how to slip a stitch, follow the above rule. Of course there are many other ways to slip a stitch – as if to knit, with yarn if front, etc. – and these are the “otherwise stated” exceptions. The following video demonstrates the basic slip stitch and several variations.