You can sign up for a group in your course if your instructor has enabled the self sign-up option.
In Course Navigation, click the People link.
To access your User Groups, click the Groups tab .
You can also access your User Groups through the Options menu. Click the Options icon  and click the View User Groups link .
Next to the name of an available group, click the Join link.
A message appears at the top of your browser verifying you signed up for the group.