Whether she's virtually stealing the scene in Avatar or turning heads on the red carpet, Zoe Saldana always seems to have a smile on her face. We love how this actress radiates a positive attitude that's absolutely infectious. Her creativity, her sense of style, and her dedication to helping others make her an obvious choice for our inaugural best smile award. Watch our video to find out more, and don't forget to vote in our readers' choice category to select the most inspirational winner — voting ends today! On Annie: Alice + Olivia.