So, I know what you’re thinkin’. You’re wondering, “hey, how do I get one of those neat avatars to show up with my comments, like all the cool kids have?” Well, it’s quite simple, really, assuming you can read and follow simple directions.
Just go to Gravatar.com and register with the e-mail address you used when you registered here (you can also change your e-mail address for here, by the way, by going into your profile and changing your e-mail address. Then you can use the new address when you register with Gravatar). Then follow the instructions to upload a picture. Your avatar will show up next to your posts within about 10 minutes or so. Probably.
That’s about it.