First Lady Michelle Obama (R), and Dr. Jill Biden (L), speak at the home of U.S. Army veteran Johnny Agbi (C), who was injured in Afghanistan, on October 17, 2011 in Washington, DC.

*Speaking to reporters Monday during a roundtable at the White House for her Let’s Move! campaign, First Lady Michelle Obama revealed her personal style rule-of-thumb.

“I have to wear what I love,” she said. “I have to feel good in it. My day-to-day wardrobe choices are very practical. I’m like, ‘What’s the temperature?’ ‘Am I going to be sitting in the grass?’ ‘Will I be playing with kids?’ ‘Can I sit on the floor?’”

The First Lady explained that her key concerns are generally about her shirts bunching up or not covering enough of her back, because “if I bend over [I’m] worrying about that … embarrassing shot,” she joked.

And though she chooses her casual clothes — H&M, Gap, Talbots, Target (which she wore Monday) with a purpose — naturally, she also shops for what she really likes.

“It’s like my music,” she explained. “Everything in my closet is something that I love, so that I can make choices based on what makes sense, knowing that I’m going to love whatever it is. I think that tends to be my philosophy.”

FLOTUS, 47, also reveals she likes to think little about her clothes once she has them on.

“If I’m comfortable in what I have on, that’s second nature, and then all my attention can go on the people in the room that I’m with at the time, and I don’t have to worry whether something is riding up or whether my feet hurt,” she said. “I don’t want to waste anxiety on something as limited as clothes.”