With needle nose pliers I turned the legs of the two red LEDs into loops. Stick the LEDs through crochet holes on either side of the face (from the inside out). Check the best positioning for the eyes. Turn the head inside out and stitch together the positive poles of the LEDs with conductive thread and run the thread out the neck. Do the same connecting the negative poles, don't let the threads cross. I ran the stitches through the crochet loops so that the thread does not show through. Test it with battery to make sure it works.