1. From your Homepage:
If you see the event for which you would like to un-register under "Upcoming Events," click on the event name
If you do not see the event there, click either "Your Log" or "View all upcoming events" under Events (they will take you to the same place - your event log).
2. If you haven't already found it from your home page, navigate to the Attendance Log and find the event for which you'd like to un-register, then click the event name.
3. Once on the event's page, on the Registered confirmation button. Once you've unregistered, you should see the button change to a solid-colored Register button.