Basically you just use one needle, identify a stitch on the edge of your knitting, put your needle UNDER it (rather than through the loop) and wrap your yarn and pull it through like a normal knit stitch.

I found it MUCH easier to hold the yarn in my right hand, since that keeps it from sliding off the needle so much. Some people use a crochet hook, I hear.

Hope that helps! Give it a shot, it all becomes clear when you have the needles and yarn in front of you.

PS – thanks! he thinks your pug is cute too.