He is trying to teach Phillip how to do things by himself.
The tone of this excerpt from Maureen Daly's famous story "Sixteen" is primarily intimate, but also frank, sentimental, chatty, colloquial, and a little bit impassioned. The narrator is describing, informally and enthusiastically, a casual, but seemingly very cherished, encounter with a boy, and she appears to be very comfortable sharing her intimate feelings with her interlocutor, judging by some of her expressions - "don't be silly, I told you before, I get around," "Don't you see? This was different," or "It was all so lovely."
D. The attitude or mood of a story