Login to Canvas https://courses.missouri.edu/
Enter the course using i>clicker
Look for the i>clicker Registration link inside your Canvas course module:
Click on the link, and click "Courses" at the top left:
Click the "Hamburger" button on the top left:
Click on "Profile":
Click on the "Edit Account" button on the top right:
Enter your PAWPRINT (i.e. abc123) in the Student ID field:
Click on Save.