I've always been fundamentally introverted, and it's only in recent years, with the help of more extrovert friends, and the anonymity of the Internet, that I've been more socially and personally extrovert respectively. A small problem I have is that in trying to be more extrovert for the approval of those friends (yeah, I know), I occasionally turn on people more introverted than me, as if saying 'Ha! I'm more extroverted than them! Like me more!' That's not a good thing, and I realise that now.