Final answer:
The author establishes a tone by using specific words to convey disinterest in Cynthia's experiences.
Step-by-step explanation:
The author establishes a tone by using the phrase I never was really particularly interested in her. These words impact the meaning of the passage by conveying the character's detachment and lack of interest in Cynthia. The use of the words 'happily' and 'put it away' further emphasizes the author's disinterest and dismissal of Cynthia's experiences.
Learn more about tone and word choice in a passage