Noticed: Michelle Obama's Perpetual Magazine-Cover Handclasp

Why do so many Mobama covers feature the First Lady with her hands demurely clasped? Deliberate signaling of her approachability? Or is it just how she likes to pose? What does it all mean?

Ebony, September 2008.

Glamour, October 2009.

Newsweek, April 2010.

Good Housekeeping, May 2010.

Conde Nast Traveler, May 2010.

Official White House Flickr pool. Then again, maybe she just likes to stand like this on her own time.