The / _ / and \ _ \ are the edges of the cable, so I'd say that for the right leaning ones you'd do a cable twist over the 3 stitches there by holding a stitch in back and then knitting the next two. For the left-leaning, do a cable twist where you hold the two cable stitches in front and work the next stitch from the needle.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry