According to developmental psychologists, as infants, we learn to govern our bodies through a process of random experimentation and feedback. We contort our faces into weird shapes, watch our parents react, and then switch up our movements accordingly.

Now, computer scientists at the University of California, San Diego are applying this same strategy to robotics research. Through the use of machine learning, they’ve made it possible for their robot–an Einstein lookalike–to teach itself to make realistic facial expressions.

via Video: Einstein Robot Teaches Itself To Smile | Popular Science