The confusing instruction is 'knit the purls, purl the knits'.
Melody, if you have an uneven number of stitches, EVERY row will be the same - like k1, p1 to end, every row.
If you have an even number of stitches, one row will be k1, p1 to end, next row p1, k1 to end, repeat these two rows.
That's to get seed/moss stitch.
pkpkpkp when you're looking at the one side.
Suzeeq meant if you were ribbing, you would PURL the purl bump (facing you as you work the row).