Final answer:
Paul Berlin is the main character in "Where Have You Gone, Charming Billy?". He is a young soldier drafted to serve in the Vietnam War. The author primarily describes the characters through their actions, thoughts, feelings, and dialogue.
Step-by-step explanation:
Paul Berlin is the main character in "Where Have You Gone, Charming Billy?". He is a young soldier who is drafted to serve in the Vietnam War. The author, Tim O'Brien, primarily describes the characters through their actions, thoughts, and feelings. For example, Paul Berlin's fear and confusion are evident in his internal monologues and his interactions with other soldiers. The author also uses dialogue to reveal the characters' personalities, such as the slang and banter between soldiers.