How to enroll in an ignored challenge from the reader view

Sometimes readers may accidentally ignore a challenge that is available to them. If they decide they do in fact want to participate in the challenge they dismissed, instruct them to do the following:

1. Log in to their reader profile.
2. Click on the Challenges button. 
3. Click over to the Ignored tab.
   
4. Click on the desired challenge, then click Join Challenge.
5. They're all set!