Jennifer Lawrence Exhibits Erratic Behaviour By Walking Back To Her Car. Jennifer Lawrence exhibits erratic behaviour by walking back to her car then runs back to sign autographs for fans then runs back to her car while grabbing her bodyguard at the Late Show with David Letterman in NYC.br br Check it out!br br So what do you think, guys? Wasn't it funny?br br Drop in your comments to let us know. Thumbs up for Jlaw and don't forget to subscribe to HB.