Be careful you may stoke the fires of the anti-anthropomorphism hordes! But that look is better than normal. It is known scientifically that that look indicates genius in chameleons. Oh the thoughts he must be thinking. It's probably something witty and hilarious, sharp and biting, but with enough softness in its tone that the pure expression of intelligence contained there in can really connect with the observer. Go on and try to imitate that look yourself. You can't do it!