Awaitress is hired at the local branch of la maison de la casa house. on her first day, she is given strict instructions to always wear black pants with a white shirt, to never carry a notepad, and to always address customers as "sir" or "madam." all of these things are elements of the waitress’s:

personal front

Explanation:

           Personal fronts are basic rules and regulation to be practiced by an individual in the workplace. Different personal fronts are required for performing a specific or a particular duty.

           Personal front for a particular work  consists of equipment or items  required in  order to act or perform the task. The personal front are divided into manners and appearances.

          So when a waitress was hired at La Maison de la Casa House, she was instructed to always wear black pants with a white shirt, to never carry a notepad and to always address customers as "Sir" or "Madam."

These are considered as the personal front of the waitress.

Thus the answer is "personal front".