Ten Things You Can Do after You're Comfortable with Outlook 2013
Pin contact cards.
If you want to keep a person's contact information on-screen while you do something else, you can hover your mouse pointer over a person's e-mail address until a little rectangle appears. That's called a contact card. Near the upper-right corner of the contact card there's a tiny picture of a pushpin.
Click that picture to make the contact card float on the screen until you click the picture again to make it go away.
You've pinned a contact and it's not there any more? Don't worry. That's probably because you're using Outlook in its default full-screen mode. When you click off the pinned contact, the full-screen Outlook screen hides it. Click the Restore Down or Minimize button at the upper right of the Outlook screen. See the contact now? Good.