Answer:
Front stage, back stage.
Explanation:
Dermaturgy may be defined as the field of sociology that includes the sociological perspective. These perspective are used in the microsociological accounts in the everyday life.
Front stage behavior are the behavior that are visible to the other's individual. Harold's behavior with the customers are visible and shows the front stage behavior. Back stage behavior are the behavior that are not visible to the audience and visible to few members only. Harold's behavior in the kitchen is back stage behavior as this behavior is not visible to customers.
Thus, the answer is front stage, back stage.