With a slip knot on your crochet hook, insert hook into the first slipped stitch, yarn over and pull through slipped stitch (just as if you were picking up stitches with a knitting needle), yarn over and pull through both loops on hook. This should leave you with one loop on your crochet hook. Repeat the single crochet stitch in each of your slipped stitches on your project. Hope this helps!
(And I started crocheting long before I ever taught myself how to knit...)