Street photography is an interesting and unique challenge; capturing a fleeting moment, an instant insight into the lives of those you likely will never meet, and never see again. In some cases, little can be learned from what you see, in other cases, you encounter an open book.
In this particular fleeting instant, we see two people who contrast in every observable way. So much is said, without us hearing a word; we have no idea what they discussed, but we do have an insight into who they are.