USC Biological Anthropologist Dr. Craig Stanford dissects the origins and meanings of winking for contributor Jackson Musker. Notice that Palin is NOT the only nominee who's used the gesture on the campaign trail.

Who says Palin can lay claim to the political wink! Bob Dole let his eyelid drop 12 years ago at a campaign stop in Ohio--on this very day, October 11th! The article he's holding talks about how he will gain ground in California in the final weeks of the campaign.
(
J. DAVID AKE/AFP/GETTY
)