Works on an even number of stitches.
Row 1: Knit.
Row 2: Purl.
Row 3: *Knit 1, purl 1. Repeat from * across.
Row 4: *Purl 1, knit 1. Repeat from * across.
Repeat these four rows for pattern.
An alternative way to work this pattern is to knit rows 1 and 3, purl rows 2 and 4 and knit the alternating knit and purl rows as rows 5 and 6. Both are attractive.