how to build lean muscle mass and get lean?

<p>Girls don't usually get buff unless they add stuff to their diet like protein. Or steroids.</p>

<p>Isn't there a sport you enjoy? I hate running by itself, it's an awful feeling to start running on the track, knowing you're going to be going in circles for a while. But on the tennis courts, I can fly without even thinking about it. The difference is that jogging is a mindless activity. Unless you have a treadmill, then you can watch TV while you run.</p>