Dr. Spyros Raptis has a degree in Electrical & Computer Engineering and a doctoral degree in computational intelligence. He talks about his main field of research and expertise which is speech and signal processing, and explains why sentiment analysis is significant, when it comes to building better interaction and communication processes in machines. To strengthen his point he presents the new HUBIC Lab: a state-of-the-art lab for studying human behaviour, interaction and communication by capturing different modalities such as speech, motion, body stance, facial expression, gaze… in different settings and contexts. This will help in capturing, analyzing, studying, modeling but also generating embodied behaviours aiming at more affective, life-like and socially aware virtual characters and robots. Interviewed by Vicki Kolovou for Tech talks Central.