Quote Originally Posted by euphoricism
But I dont know what to actually *do*. How many reps of X? How many sets of Y?
The other guys are experts but as I understand it:
-To build up the size of your muscles, you do a small number of reps with lots of weight
-To shape your muscles, you do lots of reps with small weight.

If you're larger than you want to be right now, start with the latter. If you're (like me) about the right weight but you don't want to look white and nerdy, start with the former.