Somebody stopped and said something to him. He continued to wait and watch.I was waiting for a plane to Buffalo, New York. He was standing in a circular area where the escalators ran into and out of the tiled floor. He was waiting and watching for someone. People were moving around him, parting around him, flowing around him. Many passed by without a glance. Somebody stopped and said something to him. He continued to wait and watch. Finally, he said something in return. A single word or maybe two. Brief and curt. He sort of shook his head without actually moving his head. The person left. Tony stayed. Waiting and watching. I had to catch my plane.