On a 5 day trip to Jersey, I stopped into the zoo 3 times. The first time he ignored me and sat leaning against the wall of the house. The second time, as I was approaching the exhibit, he was sitting on one of the hills in the enclosure and then started beating his chest. When I got to the glass window he had ran over to watch me. He then charged the window and gave it a whack. On the third visit, he tried to avoid me all day.
