This is a pretty lace stitch, which is only a two row repeat so also very easy to remember.
Work on a multiple of 4 stitches plus 2:
Row 1: Knit 3 *YO, Slip 1, Knit 1, Pass the slipped stitch over the stitch just knit, Knit 2*, ending last repeat with Knit 1
Row 2: Knit 1 *Purl 2, YO, Purl 2 together*, ending last repeat with Knit 1
Repeat these two rows for the pattern.