Players that hit home runs consistently hit balls hard in their zone. There are two images marked with "O" that show an adjustment. If you look at these videos yourself you will see that he was anticipating these pitches, which is evident by how soon he gets into his front heel in his weight shift.
http://m.mlb.com/video/v32152789/cledet-brantley-belts-a-tworun-home-run/?c_id=mlb
Otherwise, he is obviously waiting for the pitcher to make a mistake in the zone he is strongest. Notice the catcher set up on the outer half. Paul Molitor attributed his 3000+ hits to "I never missed a mistake."
