Every PT does things a bit differently. (for example, I *always* fixate on feet and posture first) But, every PT knows their own habits and knows how to branch off from there; and every PT is going to adjust what they have you doing based on how your bod responds.

Lots of feedback to the PT is always good. Lots of questions are good. I love it when my patients come in saying, "Hey, I looked this up on the internet; how does such-and-such apply to me?" "Why am I doing this exercise, and how does it help my problem?"

Here's one of my favorite quotes: (I have it hanging at my desk)
"No physical therapist can possibly match the work of an educated patient."

If you think of your PT as education sessions rather than work-out sessions you will get even more out of the whole process. The more you can learn, the better you will be able to manage your muscles and joints both now and later.