Socks

On the heal flap
At beginning of the next round, p1. Work this part on 1/2 the sts. Ignore stitch just purled and remaining sts not being used for the flap. Work across 36 sts in row 1 of pattern. Turn. Work row 2 of pattern. Turn.

Questions,

So do I purl 1 then do the sl 1, k1 turn? And would I slip that purl stitch next row or start right with the sl1?

I think you purl one, then work row one of the pattern–don’t turn.

Only work the original 36. Stop before the purled stitch when you work back.