Well, civically. You don't have to be in the under 40 set to join the 40 Below Civic Engagement Task Force in a social networking event tonight at 5:30 p.m. at World Martini Bar, 134 E Genesee Street, in Hanover Square (map).
Check out the Facebook event page. There's no need to RSVP. Just show up, bring people, meet people, you get the idea. No fee for the event, just whatever you opt to purchase.