Reading a Pattern

Hello everyone, I’m making the basic circular seamless baby booties from this website:

http://megan.kiwi.gen.nz/SeamlessBootee/seamlessBabyBooteeTop.html

I’m confused when it gets to the following part:

Loosely lay the working thread along the right side of the instep. Wrap it around the 12th st of this round. Pick up 12 sts along the side of the instep (2 for each chain on the edge) and while you are doing this, on alternate sts, duck the needle under the thread that was laid along the side of the instep. This will ‘weave it in’ so it is tidy and cannot hook tiny toes. K along the 12 sts at the top of the instep. Pick up 12 sts down the left side of the instep and K12 to the end of the rnd. You now have 60 sts.

I can read the rest of the pattern just fine, I just don’t understand what it means lay the working thread along the right side of the instep and wrap it around. Also where am I picking up the 12 stitches from? (2 for each chain on the edge)…

Any help would be appreciated.

Thanks and happy holidays!

It sounds like you’re going to pick up stitches from the opposite edge of where you are now, so you have to strand the yarn across to that side and pick up stitches to where you are now–grabbing the strand in the process.