Emotional development is an important aspect in the early years of growth in young children, especially those with psychological disorders like autism spectrum disorders (ASDs), whereby emotional development becomes crucial. However, traditional paper-based interventions for emotional development are mostly laborious and difficult to employ for carers and parents, whilst current computer-aided interventions feel too much like obvious assistive tools and lack timely feedback to inform and aid progress. This paper hence describes the design of CopyMe, a touch-based tablet application that uses game design concepts and state-of-the-art computer vision techniques to provide an engaging experience as well as real-time feedback on the children's progress.