Dr. Dimou tells us about her research in sign and 3D languages, describing the impact of facial expressions, body posture and gestures to the understanding of meanings. The target of her research team is to use these results for the deaf and hard of hearing people, as well as for experimentation in advanced projects, like MOBOT (MObile roBOT) and other applications, that promote independent living for elderly people or persons with reduced mobility and other kinds of disabilities. Interviewed by Yannis Rizopoulos for Tech Talks Central.