Final answer:
The manager's requirement for a warm greeting within one minute of arrival is an example of customer service.
Step-by-step explanation:
The manager's requirement that a guest be greeted either orally or with a minimum of eye contact and a warm smile within one minute of arrival is an example of the customer service aspect of a job. This requirement demonstrates the importance of creating a positive and welcoming experience for guests, which is a key component of customer service. By setting this expectation, the manager ensures that the staff is attentive and responsive to the needs of the guests, enhancing their overall satisfaction.