People I meet hanging arround. Neighbors, store clerks, people using public transit at the same time as me, neighborhood block parties, volunteering, just making polite conversation.
Basicly, I go arround minding my business, but am not exceptionally unfriendly about it. This leads to conversing with people. I approach mostly women, but am approached by mostly men.
Most of these conversations go well. Conversations are had. Networking is done.
But it's when men show an interest in dating that things go down hill. I don't want to be friends with people who don't take no for an answer, but I get it often enough to wonder if I'm sending some kinda wrong signal.