My streetwork was fairly bankrupt, but I managed to catch a decent session with a Harvard professor ice skating with his son, in the rink outside the Charles Hotel.
That last one is another woman's child, but I think that picture may come closest to working, out of the bunch.
It can be nerve wracking to take photographs of strangers. Half of them stop short of crossing into the frame, not wanting to get in the way of the camera. They don't realize that they are the subject of the photograph. So... I take a fake photo, a quick snapshot, so they pass into frame and I can get the photograph I want. It takes me some time to get into the right mood. Not long, ten, twenty photographs. But once I hit that mood, I sort of forget that they can see me at all and my photography gets a lot looser and a lot better.
That wasn't the case with the skaters. I introduced myself, asked if I could photograph. Forming a relationship, even a casual one--like I did with the skaters--helps.
