Developing the rider's eye.
Seriously read it, and watch the videos, especially the first one. That is a video that I found on YouTube last spring and really enjoyed watching. The quality of the video itself isn't great, but the info in it is so very valuable. Not only in regard to developing your eye, but just generally riding. He is loose and a part of the horse. One of my favorite bits is when he puts his hand over his stomach as he sits the trot, for some reason that made not bouncing a simple task in my mind.
|Face of concentration|
|Rocking my old Overlook Farm shirt|
|Good...but I want better|