[hkmurakami]

Yup, I actually organize rides where I get friends and friends of friends to tag along, and it ends up being a natural way to make new friends and so called "network".

Hiking works great too, and there are lots of great hiking routes along the purissima hills in the SF Peninsula.

[c0nsumer]

I do similar things, but also as part of getting new people into mountain biking and building new, legal, open-to-bikes trails. It's pretty amazing the diversity of people that I've ended up friends and acquaintances with; people who I wouldn't hesitate to call up (or hesitate if they called me) looking for some professional help.