Front ShouldersWith WS facing and CO edge of left side at the top, using the needle emerging from the sweater's left side below and a separate strand of yarn for each piece, pick up purlwise and purl XX sts from the middle of each st of the CO row—XX sts on each piece.
How do we then pick up the stitches purlwise?We want to pick up the same number of stitches that we cast on in the beginning. That means we need to pick up one stitch in every single cast on stitch, including the selvedge stitch at each end. Each stitch other than the selvedges looks like a V, when you are looking at the fabric on the right side and also not upside down. You want to pick up a stitch in the middle of every one of those V's, right next to the cast on edge. For the selvedge stitches, you just have to find a good place to pick up a stitch since it doesn't look like a V. But the main thing is not to forget to do it or you will not have enough stitches and the connected edge will not be flat.
To pick up purlwise, you insert the needle from the RS (i.e., the far side since the WS is facing you) through to the WS, wrap the needle and then pull it through the fabric. Then you insert the needle in the next stitch from the RS to the WS. It will feel like you are purling since you insert the needle towards you as in making a purl stitch, hence the name "pick up purlwise."
A Wonderful Visit with my Sister
Here are the three beautiful knitters patiently enduring my hovering over them to make sure they did everything exactly right.
We also went to a yarn store and bought yarn for her sweater, so the next day we generated a custom-fit pattern for her and started her sweater. The picture above, as you can see, was taken on her plaid table cloth and it is a picture of the start of her sweater using Cascade 220 Aran yarn.