In Gail Honeyman's novel "Eleanor Oliphant Is Completely Fine," the protagonist's experiences reveal how emotions can influence one's communication. The notion that a person's voice takes on a different quality when they smile illustrates the profound connection between inner feelings and outward expression. This subtle transformation can affect how others perceive us and how we engage with the world around us.

Honeyman's observation emphasizes the importance of emotional well-being and its impact on interpersonal relationships. Smiling can not only enhance one's voice but also uplift one's spirit, fostering a sense of connection and warmth that can be felt by others. This idea underscores the transformative power of simple actions, like smiling, in navigating life's challenges and building meaningful interactions.