Sit, Lay, Down, Crawl. Once in the down position, with a treat handy, say "crawl" and move the treat away from Rascals face (still very close to the ground). Rascal should scoot/crawl towards the treat. Even if he only moves a few inches or a foot, tell him 'good crawl Rascal' and give the treat before he breaks the "crawl" stance.