OK, I’ll ask this again. I have made a few scarves, and have masterd the basic “knit and purl”. Now I am making my first baby blanket, I’m pregnant with our 3rd child. I made a swatch of the pattern (divided boxes patterns with a medium weight yarn, size 6 needle). The directions say to measure the swatch on the “wrong side”. How do I know what is the wrong side??? THANKS!