Person Page Drawers and when they Appear

There are three drawers on the person page that appear depending on what data you have. The e-mail drawer appears when you have at least one e-mail address, the company drawer shows when you have included a company in the name and the twitter/buzz/RSS/Atom drawer is displayed when you have included at least one twitter/buzz account in the notes section, specify at least one RSS/Atom feed or specify at least one blog url.