Knit rows, and purl rows, and knit rows with increases and decreases to make these waves.
And speaking of waves, I threw in the two rows of gray because I thought I would run out of blue yarn and because I thought it would create an effect of caps on waves. I'm not quite sure it worked how I wanted, but it's still a very pretty cowl and I don't think the color changes look too out-of-place.
By the way, the yarn I used is Cascade's Alpaca Lana D'Oro. I used up one skein and probably half of another one in the blue, which is around 330 yards. I only used a negligible amount of the gray. The yarn is a 50/50 mix of alpaca and wool. It's warm. It's soft. It's super springy.....and stretchy.
This cowl practically bounces when you put it on and arrange it around. It's almost bulky because of its size, but it drapes up against you really well. It's not super-scrunched up, but it doesn't quite lay flat either.
I guess it adds texture to your torso. Which might not be the tempting texture the pattern name alludes to, but I don't think you can have too much texture anyway. This cowl is lovely.