In case you were wondering, this is the look that you give your human when they have the audacity to give you a bath after you so skillfully rolled in every mud puddle at the park.
If you were expecting something more pathetic, I was, too. He just looks hopeful, like I'll give him a biscuit. It worked, of course. But this realization made me wonder if I might have gotten scammed by my puppy, who knew he would get extra biscuits if he survived a bath so he rolled around in mud on purpose. He's a very sneaky guy, that Sam.