I thought I would piggyback off of Robbie's previous post. Let's break it down and use Todd as a case study. First of all, Twitter is a scrolling log of a person's daily doings. If you want to follow Todd on Twitter here's what you do.
1.) Click here:
2.) Click the big button that says "Join Today"
3.) Setup a Twitter.com account. Then you go back to Todd's page and click follow. That's it!