Billard, A.Mataric, M.2005-11-162005-11-162005-11-162000https://infoscience.epfl.ch/handle/20.500.14299/220015Betty: "Robot, play with me!''. Robot: "O.K. How do we play?''. Betty: "You watch me and do like I do. Look!"text::conference output::conference proceedings::conference paper