To be an actress, you have to be expressive. (That is, of course, unless you're Kristen Stewart or Aubrey Plaza.) When it comes to showing a wide range of emotions, Jennifer Lawrence is a pro. It doesn't matter if she's on the red carpet, meeting fans, or promoting her films -- J.Law wears her emotions on her face. In honor of her 23rd birthday on Aug. 15, we're remembering the ones that made us LOL the loudest.