Enlarging the .?

i heard excersise can enlarge the muscle behind your and make your look bigger---what type of chest excersises can i do to icrease the muscle---AND I WANT RESULT NONE OF THAT SAPPY ADVICE LIKE "YOUR FINE JUST THE WAY YOU ARE" I WANT RESULTS!! AND I AM TOO YOUNG FOR SERGERY SO DONT SAY SERGERY!!!!