It says to skip purl stitch, then knit the next; then go back and then purl the skipped stitch for a right twist. For a left twist - skip next st, purl in back of nextst; then knit skipped stitch.
Do exactly as written.
Insert ndl into the 2nd st on left ndl, K it, but leave it on the ndl. Then bring the yarn fwd and P the first st. Drop both. The left twist is bit trickier but same seq....P the second st on the left ndl THRU BACK LOOP (don't drop), take yarn to back and then K the first. Drop both.