Picking up stitches - I don't get it!

I’m totally confused about picking up stitches.

I don’t know how to explain properly, but I don’t get where I attach the new yarn to what I’m working on?

I have a piece knitted that’s now off the needles, but I need to go back and pick up stitches for the legs - do I need to start off with doing a slipknot with the new yarn on the needle?

I’ve looked at the video on here, but I don’t understand how the new orange yarn is attached to what she’s about to pick up stitches from.

Sorry, I haven’t made much sense at all have I?! I’m really stumped :??

Laura

Generally, you just start picking up the yarn and weave in the end later. Sometimes I tie a slip knot in the yarn and pull that through my first stitch for a little security, but that leaves a gasp knot. Some people don’t tolerate knots in their knitting.

I use a slip knot as well if it is on something that isn’t going to show (like inside a seam or inside a hat or sock). I use a crochet hook to pick up the stitches and then transfer them to a needle afterwards.