Like most people, Tim needs to be motivated to work out.  He has access to some gym equipment and tries to adhere to a regular schedule.  Having a workout partner can be a motivating factor.  If you need a workout partner, ask Tim if he is available to work out at your gym (with a guest pass of course).  If you don't have a place to work out, ask Tim if he can set up a time to work out with you in his gym.  It does have some pretty cool views.