In 1FA mode, enrollment is automatic!
Each person continues to badge-in as normal. The person does not have to stop or interact with the Rock at all. Over time, such as the course of a few days, the Rock associates the person's face with their badge #. After a few badge-ins, the person is an enrolled user and the Rock automatically performs face-only authentication for this user. The user is not required to present their badge after this. The enrolled user will notice that as they approach the door, they will be authenticated.