I need tips on how to be funny? please 5points?

Im 15 and i cant think of funny **** ALL around people,in class,even girls...it kinda sucks !. ive tryed not to think about it and sometimes it comes to me but about 97% of the time i do think about it lol.Just hit me up on advice and how to observe people and the objects around them to make something funny up PLEASE ill give the best answer 5points. thank's