Simpler directions for even numbered rows: Knit the knits, purl the purls as they appear. There is a spiral effect on both sides, but it is less pronounced on WS.
Shown with a cast-on count of 16 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats
Swatch photo uploaded by Emex