After several visits you'll start to meet the same people and get to develop a network of contacts, some of whom you feel like taking a chance on dating. If you're uncomfortable starting out, take a wingman a friend to help you develop an initial presence and then follow your instincts from there.
Failing that, There are the usual online 'friend finder' type services that you could register with, or you could place a "Lonely Hearts" ad in the NH Classifieds.
, . My recommendations for the best dating sites are based primarily on my own paths with in the preceding three hours, though I hadn't left my apartment all day.