Log in to Moodle and click on the link with your name (on most pages, look in the upper right-hand corner where it says “You are logged in as”), and on the next screen, select the “Edit profile” tab. Then, change whatever settings you like.
Note: Some settings (last name and first name) are locked and cannot be changed in Moodle. Contact the Registrar’s Office at registrar@cugn.org to change your postal address.