My wife is about all the social interaction I care to have.
I work as a janitor, on third shift, so I pretty much get left alone. I don't really do the whole social media thing, either. I don't tweet. I do have a facebook page, only because my sister visited, and threw a nutter, when she found out I didn't have one. It just sits there. I think I have 6 facebook friends, all but 2 I actually know in the "real" world.
My online presence is pretty much limited to a couple of forums. I guess I am not an extrovert.