Sans appears as a relatively short and paunchy skeleton, with mitten-like hands. He is always seen with a wide, toothy-grin on his face. He wears a blue hoodie with a gray hood, a white t-shirt underneath, black shorts with white stripes, and a pair of slippers. He has white dots for pupils in his black eye sockets that disappear when he is serious or angered. When Sans uses telekinesis, his left eye flashes light blue and yellow while his right pupil vanishes. speaks in lowercase. pun-master.