I actually make friends very easily and like to talk both offline and online. More-so online, but I get by with friendly conversation well enough, even if I don't actually click with someone.
But when I do not want to talk about something, I shut myself off almost entirely. I was also very anti-social and only focused on TV when I was a child. But that has changed, thankfully. I feel it was mostly because I was always around people I didn't want to talk with; as I acted the same as I do now when I was with people I liked.
I also come off quite quirky in life, fashion and anything, but hey, that's just me. :P