Many experts assert that a significant portion of our first impression—approximately 40 percent—is influenced by how we speak rather than what we say. This suggests that the tone and quality of our voice play a crucial role in conveying messages and emotions effectively. The way we articulate our words can have a much greater impact than the actual content of those words.

In her book "The Art of Communication," Susan C. Young emphasizes the importance of vocal expression in communication. She suggests that being aware of our vocal delivery can enhance the clarity and understanding in our interactions, ultimately leading to more positive outcomes in personal and professional relationships.