Assuming since you're posting on an internet forum that you're kind of a geek like us, you might try reddit.com/r/yourcityname , there are subreddits for most every semi-major city that have meetups and stuff you can get involved with. Go to one, have a few drinks and let 'em know you have a fridge full of beer if they want to come back to your place for some DDR or Guitar Hero or something.