Quote Originally Posted by The Glyphstone View Post
I mean the thing in the lower right hand corner. It's a head-and-torso outline, and has the number 0 next to it.
Spoiler
Show



Right above the Attack button in the block.
Oh, that. The number 0 is the number of your "friends" that are currently online. If you click on it, it brings up the full list of them that you can use to get some status information about what they're doing, send messages to them, and other such things.