As soon as you are able, visit with your advisor to discuss what courses you should take your first semester. You can register for classes through URSA (Banner). URSA is your online portal for course registration, financial aid information, campus announcements and many other tools.
To access your account, you will need your Bear Number, which was sent to you in your acceptance letter. If you've never logged into URSA, select the the New Student link under the log in. Once you are in URSA, click on the yellow Student tab, and in the Registration Tools box, click on Register, Add or Drop Classes.