First lady Michelle Obama sits down to eat with students during a visit to New Hampshire Elementary School, with Mexican first lady Margarita Zavala, not shown, Wednesday, May 19, 2010, in Silver Spring, Md. The school, which was awarded the USDA's Healthier US School Challenge Silver Award in 2009, serves more than 400 Pre-K, Head Start, first and second grade students, many who come from Central America, South America, and other countries. (AP Photo/Pablo Martinez Monsivais)
February 9, 2012 11:08:44 AM PST
by NANCY BENAC Associated Press
DES MOINES, Iowa - February 9, 2012 --
She did some wild arm swings, sharp robotic turns and pulsing fist pumps.