I would think of it as the yarn going all the way around the needle - you don't want it to be in front of the slipped stitch, you are creating a new stitch, and a hole. Envision an eyelet, if that helps.
Knitting homeschooling mom to 3 kidlets
Bayerische Socks by Eunny Jang in Knit Picks Risata (for ME!)
in queue: Swirl glittens; lacy raglan for me; new cabled sweater for dh