Final answer:
The impact on guests' perception of service largely comes from the provider's professionalism, resourcefulness, and the setting's appropriateness. Hosts should view managers as important internal customers and create a positive shared reality with guests.
Step-by-step explanation:
The biggest impact on guests' perception of service often comes from the interaction with the service provider and the overall environment. In the role of a host, ensuring that one treats a manager as the most important internal customer by being professional and resourceful can enhance the quality of service provided. Similarly, when one hosts friends for dinner, the setting and mutual respect for the established roles and rules contribute to the shared reality and satisfaction of the experience. Therefore, focusing on interpersonal relations, setting expectations, and delivering on those can greatly influence guests' perception of service quality.