look just because he doesnt want to date you doesnt mean that he doesnt like you , perhaps he see's you as a sister,  or that he just doesnt feel that  spark. Here  do this for the next few days wear something sexy     and revealing/slightly ****ty    but totally ignore him , like hang out with your other friends  , he will begin to wonder why you are  not talking to him and when he starts  to wonder about you then that means he is thinking of you,  and pretty soon he will be thinking about you alot  while he is alone in his room