Moving Fun at HSBC

I was queing in line and a man (apparently a property sales broker, from his mobile phone conversation) behind me kept turning and waving around so much that I could not possibly concentrate on reading the newspaper. At last, I kind of figured it. I put down my paper and started moving around: turning my head, walking around in a circle trying to out do his act. And then this had made him relatively calm maybe because of me dancing around.

As a child, it's always fun mimicking people.
Now, it's a fun thing to annoy the annoying people.