a) To make a strong first impression on Scout and Jem, Dill introduces himself confidently by stating his full name, 'Charles Baker Harris,' and highlighting a skill he possesses, the ability to read. This introduction is meant to impress upon Scout and Jem that he is intelligent and perhaps somewhat advanced for his age.
b) This excerpt reveals that Dill wants to be perceived as capable and knowledgeable. By emphasizing his ability to read, he attempts to establish himself as competent and someone who can contribute meaningfully to their activities or discussions. It shows he is eager to gain their approval and friendship.
c) Dill's eagerness to impress might suggest that he seeks approval and validation, possibly due to his life outside of Maycomb. Dill's background, as later revealed in the book, includes feelings of neglect and a lack of attention at home. His parents seem to be preoccupied, and he is often left feeling isolated. This need to be acknowledged and appreciated might drive his eagerness to prove himself to others, like Scout and Jem, in a bid to secure friendship and a sense of belonging in Maycomb.