I saw Scoble mention this earlier on his blog today.
Don’t get all worked up. It’s not as bad as it sounds. It’s not a medical condition, or something funny you do that keeps people staring directly at you.
A global community of friends and strangers answering one simple question: What are you doing? Answer on your phone, IM, or right here on the web!
It’s a pretty simple concept. You can check out Twitter.com to see what people all around the world are doing at this exact moment. Things like “trying to look busy at the office” are commonplace. You can submit your answer via phone, IM or their website.
So, join the network, add some friends and Twitter away.