Street Photography / by Mister Tom

I am making an attempt at street photography. As yet all candid. I haven't had the courage so far to single people out and approach them, but I am getting more brazen with the opportunistic approach. It is an interesting change of pace - you have no idea what you are going to find, what you are looking for, and often the photo opportunity exists for all of a moment. Reading about Henri Cartier-Bresson has been interesting - his approach is one of secrecy and capturing in a split second, unobserved and unobtrusive. 
I will see how it goes, and hopefully, given some time, I will get some more done for the purpose of doing it. Most so far has been entirely unplanned, and filled the time waiting for trains, or in town. 
In the meantime, criticism and comments would be much appreciated. These are the best picks so far, and date back a while, but most are recent.