My life in Glen Park is quite similar. Recently, I've taken to running to BART for a warm up before I take it to the Equinox and one of the first times I did, a neighbour stopped to ask me if I was in a hurry and if he could give me a lift. I accepted, obviously, and we chatted.

Honestly, most of SF is rather friendly and nice. I like it. First moved here 6 years ago.