Mysterious taurus boy, pisces girl :)?

im in 11th grade at school, and someboy in my form was having banter with me, and he has a friend whos a taurus(i checked his bday on facebook lol) and he kept trying to show off, but was quite shy. And i asked him 'whats your name?' and he winked and said 'that you wont know, youll have to find out' (i know his name now tho) , i know this sounds wierd but i really like him, i have a bit of a crush on him, and dont know how to approach him? what should i say at school? or should i speak to him on facebook? what should i say on facebook chat?(: