PU (on edge) is used to indicate picking up or pulling up a stitch on the edge of your knitting.
Insert needle into loop on edge and use needle to knit a new stitch onto needle. Stitches should be spaced evenly along edge.
In Jill Wolcott Knits® patterns, I often use the term “pull up” in place of “pick up” as I think the term is clearer, because you’re pulling up the thread to work it.
Pattern Specific Variations to Pick Up (on Edge)
Sometimes, I include technique variations that are for specific patterns. I always include directions for specific techniques in the pattern itself, so be sure to also read any patterns you’re working on closely.
PU / pick up into edge stitch Variation for Taos
Working from the right side with the knitted piece in your left hand and the needle in your right, put the needle through to the wrong side in the center of an edge stitch or the knot between rows, wrap yarn around needle as to knit and pull through to the right side. The loop created on the needle is the picked up stitch. Keep tension even as stitches are picked up. Use a smaller needle to keep the pickup loops small if needed.