I'm not a huge table top gamer or anything and have checked out my local shop to play with others. It was definitely fun, but I'll admit that it wasn't for me and I stopped going. If you are into board games, you definitely should check them out though. I just found it required more interest in board games than I was willing to partake in when I really just wanted a third space to hang out.
On the flip side, I was into swing dancing for a few years and I found that was a great place to socialize. Of course, like the board games thing, it's not for everyone. That said, I did find it was a bit easier to just show up there and just socialize. Once you're a regular, you don't necessarily have to be constantly dancing or anything. (I did when I got started, though.) You can just hang out and have a good conversation with another regular, and often there's a bar where you can chill with a drink. It's definitely intimidating to go dancing as a newb, though, so I recommend going some place that offers a weekly class. That's a great way to meet other newbies and go to the dance together.