If you were to log in, you'd be able to get more information on your fellow community member.
If you do want to volunteer your time; organise a conference! Find something you're passionate about (free software, gardening...) and see if there's a related grass-roots conference in your area (for example the "Yet Another Perl Conference"s, the various "Open Source Developers' Conference"s etc). If so, volunteer to help with the next conference; if not, create one. It's a great way to spend time with people, encourage the growth of your field of interest and increase your personal fame within it. It also comes with a specific due date, so you can walk away at the end if you don't want to do it again.