Kristen Stewart [1] showed off her signature low-key style as she made her way through LAX on Sunday. The actress sported a casual look as she walked through the airport, wearing a tank top and plaid button-down shirt with a gray beanie. Two days earlier, Kristen was in great spirits while attending a screening of her film Clouds of Sils Maria in LA. The brunette beauty has been spending most of her free time with Alicia Cargile [2] over the past few months. Meanwhile, news broke last week that her ex-boyfriend Robert Pattinson [3] got engaged. The actor reportedly popped the question [4] to FKA Twigs after just six months of dating. Keep reading to see more pictures of Kristen's latest outing.