What Should I Say To Him?

ok so i have this freind i already knew he liked me but i dont like him back..and somehow he got my number and now evry day he is like hey beautiful or hey gorgeous i just dont know what to say i told him im not interested and he layed off and then he went back at it a little later....so what should i say? I dont wanna hurt his feelings though.....But he is very annoying...