Any pocket. They're both the same. And they both work on either side.

Isn't that cool? I thought that because the cables are going in opposite directions on the two fronts that the two pockets would have to be knit differently in order to match. But no, just knit the cable from the right front (when worn) on the right side of the pocket and the cable from the left front (when worn) on the left side of the pocket and it matches both sides! (I'm not very gifted when it comes to intuitive spatial reasoning, so I'm always surprised by these things.) I am sorry to report, however, that the directions didn't quite make this apparent. In fact, the pattern instructions have you reverse the cables on the pockets so they don't "match" the cables on the front. Even though the pattern picture clearly has them matching.

Since I'd already reversed my front left and right side cables (oops!) from the ones in the pattern, I was, luckily, paying no attention to the specific cable directions for the pocket and only discovered the pattern error later when it dawned on me that the two pockets are the same. I read through their directions to confirm my conclusion (which I assumed must be wrong) and discovered that their cables didn't match up. (Let me tell you from experience, it is amazing how many times you can check and double check and test knit a pattern, and still little bloops like this will remain. Oh well, c'est la pattern writing.)

Either way, I've got two matching pockets and George is ready for his collar.