How do I remove/delete someone from a group?

There are three ways to edit to which groups a person is assigned. 

Step 1: Visit the groups page and select the group in question.

Step 2: You can delete a specific record or you can choose multiple records to delete using the check boxes.

Step 1: Visit the contacts page, locate the contact in question, then click on the edit icon (pencil). 

Step 2: In the popup that appears, first select and then delete the group that is assigned to that contact. Save.

Locate the groups section in the RHS. Delete the group, then save.