I was hoping the glossary would have a video, but it doesn't and I don't get it. It says
psso: pass the slipped stitch over (as in slip 1, knit 1, psso)
What in the world. Ok so it follows after a slip and so I do something with the slipped. I take the slip from left to right needle then I knit one left to right needle then I do what with the slip? Put it back on the left needle (slip it backwards??) over the knitted??