Character interaction refers to the ways in which characters communicate and engage with one another in a story. This can include dialogue, body language, and emotional responses, all of which help to develop relationships and advance the plot. Effective character interaction can reveal personality traits, motivations, and conflicts, making the story more engaging for the audience. In literature, dialogue is a key component of character interaction, allowing readers to understand the dynamics between characters. Additionally, non-verbal cues, such as facial expressions and gestures, play a significant role in conveying emotions and intentions. Overall, character interaction is essential for creating a believable and immersive narrative.