(CNN) - What did Hillary Clinton's body language give away at the Democratic National Convention?
Dan Hill, a body language expert and author of "Face Time," told CNN that even while the words Clinton delivered offered an unequivocal endorsement of Barack Obama, her body language was much less affirmative.
"When she spoke about Obama, she really did not emote very much," Hill said. "The only thing she showed was a very weak smile, the cheeks didn't tend to lift very much, it was really almost what I would call a 'crocodile smile' where even the slight corners of the lips sometimes raise into a little bit of a smirk."
"I don't think that helped move the 30 percent of her supporters who say they won't vote for Obama," Hill added. "What she did do was appeal to voters at large, that she did more emotionally."