No, introverts do not have to be vocal. Being vocal or talkative is not a defining characteristic of introversion. Introversion is primarily about how individuals gain and expend energy in social situations, with introverts typically feeling more energized by spending time alone or in quieter settings.
While some introverts may indeed be talkative and enjoy engaging in conversations, many others may be more reserved in their communication. They may prefer to listen and observe before speaking, and they may choose their words carefully when they do decide to express themselves.
Introverts may find more comfort and satisfaction in solitary activities or in-depth one-on-one conversations with close friends rather than participating in large social gatherings. However, it's essential to remember that introversion is a spectrum, and different introverted individuals may exhibit varying levels of vocal behavior.
It's important not to stereotype or generalize introverts as always being quiet or reserved. Introversion is just one aspect of a person's personality, and individuals can have a wide range of traits and behaviors regardless of their introverted or extraverted tendencies. The key is to understand and respect individuals for who they are and how they prefer to communicate and interact with others.