This App is used for training users to mimic their best expressions. The App takes input from a webcam/video and displays the current expression along with its attractiveness and seriousness scores, computed in real-time. The user can specify a target expression to mimic. The App then shows three windows; the current expression, the target expression, and an aligned and a blended cross-fade between the two. The cross-fade oscillates between the target and current expression once per two seconds, so that the subject can examine differences between the two expressions. See Section 6 in the original paper for details. This software includes two modules: (1) Learning attractive/serious SVM models given expressions and annotations. (2) Expression Training App.