(CNN) - Sure, what the candidates say is important, but body language can also make an important impression on voters.
A body language expert, Jo Ellan Dimitrius, studied all of the candidates throughout the two-hour debate and decided that Sen. Hillary Clinton, D-New York, won the battle of the body language. Sen. Clinton stood confidently behind the podium and kept her hands on top of the lectern, rather than nervously grabbing onto the sides, Dimitrius observed.
According to Dimitrius, Sen. Barack Obama, D-Illinois, also had a strong performance by using confident hand gestures and keeping consistent eye contact with the audience.
During the questions about gay marriage, former Sen. John Edwards, D-North Carolina, had a nervous look, and he put his hands in his pockets, which is also a classic sign of nervousness, Dimitrius said.
- CNN Producer Ted Metzger