That's Book... bless his little heart. I love him so and he provides endless hours of comic relief but I can't understand how he acts so dumb sometimes and so smart others.
He can sit, lay down, fetch, and do all sorts of things on command.... but that boy can't find his way out of a paper bag (literally, he's been stuck in them before and had to meow for help).
MowMow has this stare that's just for Book's dumb antics. This 'Wow, really?' look that cracks me up every time. I keep explaining to MowMow that as the older and more intellectually blessed cat it's HIS job to bring his little brother up to scratch but... I'm not holding out any hope.