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CNN's Candy Crowley (C) conducts the second presidential debate with US President Barack Obama (R) and Republican presidential candidate Mitt Romney (L) at the David Mack Center at Hofstra University in Hempstead, New York, Oct. 16, 2012.

The Town Hall debate style allows for more free flowing conversation. It also allows for more free flowing movement, as candidates walk, meander or strut around a crowd.

Viewers may be subtly influenced by the body language of either Mitt Romney or Barack Obama. KPCC's Patt Morrison joins the show with non-verbal communication experts Dr. G. Jack Brown, and Dr. Lillian Glass about what they saw in the debate.