Basically there’s not much more to say: you can now edit your avatar and description. Now the tough question remains: what to show as your avatar? Yourself? Your favorite photo? Your cat? And what about the description? First or third person? Maybe go for pluralis majestatis?
So how to change? Just go to your settings and change it. Once you’ve done this, just leave a comment with your description in the comments below (your new avatar will show up there as well). We’d like to get known to you!