What's President Obama's most annoying habit? Practicing his speeches for hours in front of the bathroom mirror? Talking too much foreign policy at the dinner table?

No -- First Lady Michelle Obama said it's his tennis game. When they play, the president usually wins.

"He beats me quite often," she said Friday night on NBC's "The Jay Leno Show," appearing via satellite hookup from the White House. "That gets to be pretty annoying."

It also looks like Bo -- the Oba-mas' Portuguese water dog -- is living like a king. The First Lady said the presidential pooch celebrated his first birthday earlier this month with a Rose Garden party.

"We had party hats," she told Leno.

The First Lady also noted there are White House secrets she will never reveal, such as what daughters Malia and Sasha are wearing for Halloween.

"You need security clearance for that," she said.

ASSOCIATED PRESS