Final answer:
The statement is true; your self-perception and emotional state can significantly influence your interaction with customers, including internal customers like managers. To provide excellent service, one should manage emotions using metacognition and self-awareness.
Step-by-step explanation:
The statement 'Your feelings about yourself will affect the way you deal with the customer' is true. When we think of providing service to others, whether it's to customers or internal stakeholders like managers, our personal sense of self plays a significant role. If you view your manager as your most important internal customer, you'll likely strive to deliver exceptional customer service to gain positive feedback and seize opportunities within your role, thereby increasing job satisfaction. However, it is crucial to maintain professionalism and be resourceful, which requires managing strong emotions through metacognition, reflecting on the origin of these emotions to better control them. This self-awareness helps in maintaining a high standard of service regardless of personal feelings, as people's reactions tend to act like a mirror reflecting our personal image back at us.