Over at the American Express Open Forum blog, I explain how to not look clueless on Twitter. The first five ways are:

1. Don’t tell other people how to tweet.

2. Don’t tell the world that you unfollowed someone.

3. Don’t ask people why they unfollowed you.

4. Don’t constantly tweet mundane updates and babble.

5. Don’t use a small picture for an avatar.

To read all ten and why they impugn your intelligence, click here.