Jim likes to make things dramatic during the story and this shows in his narration. This helps create the tone of the book. Tone is the author's attitude toward the topic. The author's attitude is expressed through the words and details he or she selects. For example, textbooks are usually written with an objective tone which includes facts and reasonable explanations.
Jim’s attitude changes throughout the novel, depending on who (or what) you are talking about. The fact that he hardly mentions his parents (and hardly blinks even after his father dies) suggests indifference toward his family. Jim shows moderate respect (and sometimes impatience) when describing Captain Smollett and Dr. Livesey. When Jim describes the pirates, however, his tone suggests that he admires and reveres them, and is fascinated by their cunning ways and scandalous practices. Jim’s tone is generally modest when narrating his own acts of bravery