This is being a lot of fun -- I am taking Ike to a "Family Dog" class once a week and I'm using clicker training to teach him things and to discover what he knows. He's a hoot! He gets SO excited, and he offers some pretty cool behaviors. Last night he tried to get the treat by sitting up on his butt and swatting the air in front of him with his paws, so I turned that into a "Hit me!" routine. Now I can tell him to sit, have him watch me, and then say "hit me!" and he rears back and puts up both front paws, then I toss a treat, which he catches in his mouth.
I also found that he DOES know "down" -- apparently he just didn't like to do it. But when I got him home and tried it with his dinner bowl, he was way too stimulated and we didn't get that one. With treats, though, he will down when I go through the steps with him.
We're also working on "leave it", which is the drill where you first toss a treat, cover it with your foot before the dog can get it, click when he takes his attention away from the treat/foot, and eventually shape that so the dog looks away from the object and at you when you say 'leave it.' Ike caught on very quickly to the eye-contact drill, where he gets the treat from the outstretched hand by not looking at the hand, but looking at me and making eye contact.
He gets so excited doing this, and he's so tired after class, it's really cute. LOL