Not sure. I've heard putting yourself out there by doing things can help. Some people say when you stop looking it happens. You bump into someone somewhere for some reason, start talking, and, if you like them, eventually ask them out and see where it goes. I think the important part is getting out of your bubble and interacting with people. Honestly it's probably just dumb luck in the end, though you probably have to help that dumb luck along a bit by doing more than sitting around, waiting for it to happen. At least, that's my guess.