The Infamous "Uh" Which Signals The Absence of The Teleprompter

The debate the other night tested Obama's ability to handle himself on his feet without a teleprompter.  Except for the fact that he couldn't do much but repeat his prepared remarks he did fairly well, except, well 'uh' you have to learn not to do that 'uh' thing.  Silent extended pauses make you look like you're thinking.  Lot's of uh's make it sound like you don't know what to think.