How Do You Know Reese Witherspoon Is A Happy Jogger?

Because she flashed her signature grin while out running through the fog in Beverly Hills early this morning. The Oscar winner just attended the Westwood premiere of her latest comedy, How Do You Know, the night before... and she was just as smiley on the red carpet as she is here! Despite the lukewarm buzz for the film, we're excited to see Reese in a charming rom-com role, especially considering the last time we saw her on the big screen was two years ago in Four Christmases.