How to take good pictures of your dog

Here's my dog. Look how patient and attentive he is. A perfect subject, no?

Would you believe me if I told you I bribed him? That his attentiveness was due to something other than me?
It's true. But I can't bribe him with anything too delicious, as he has pancreatitis. So I bribed him with little pieces of yam. Don't believe me?
I have proof!
Ta-da!