It's call "uptalk" or "upspeak" when you end a sentence on a higher pitch than the beginning...kinda like a question. Soooo, I did some research. Grant it, there are studies and debates about it from many angles. Here is one: "These findings suggest that rising tones, far from a show of inferiority, can be used to assert dominance by exerting pressure on listening participants to respond and establish common ground." Yup...I bet that's his angle. I originally just thought he was a pussy...but perhaps he talks that way with purpose. Just my opinion and not that of TDW. :)