Final answer:
The use of dialogue in developing characters like Diego and Luis informs readers about personality traits, relationships, and context through speech patterns and interactions. It brings authenticity to the narrative and allows for cultural nuances to be expressed directly to the reader, making the story and its characters more relatable and vivid.
Step-by-step explanation:
The author's use of dialogue to develop the characters of Diego and Luis serves multiple functions. Within their conversations, we glean insights into their individual personalities, social dynamics, and the context in which they operate. Dialogue reveals the education, vocation, economic status, and emotional status of the characters as individual speech patterns, word choices, and language proficiency become apparent. Moreover, it shows how characters interact, indicating their relationships through the tone of voice or body language implied within the dialogue. Formality levels, interruptions, and overlapping speech can signal familiarity or hierarchy.
Dialogue also plays a crucial role in setting the scene, as the rules of behavior and norms are influenced by whether characters are in private or public spaces. When we consider writing like a play, where the dialogue is the primary method of storytelling, the significance of dialogue becomes even clearer. Hence, by embedding dialogue, the author allows readers to "witness" the unfolding of events and the conflict within the story, as well as to "hear" the cultural and linguistic uniqueness of the characters, thereby enhancing the reader's experience.