Final answer:
To illustrate a character within a piece of text, it is best to show their actions and let readers draw their own conclusions.
Step-by-step explanation:
According to what King said, the best way to illustrate a character within a piece of text is to show their actions and let readers draw their own conclusions. By portraying a character's actions, writers can allow the readers to infer their traits and motivations, creating a more engaging reading experience. This method allows for a deeper understanding of the character without relying on long and complex descriptions or solely relying on dialogue or physical appearance.