Read the excerpt below and answer the question.
And then he came. All of a sudden his arm was around my waist so warm and tight and he said very casually, "May I skate with you?" and then he took my hand. That's all there was to it. Just that and then we were skating. It wasn't that I never skated with a boy before. Don't be silly. I told you before, I get around. But this was different. He was a big shot up at school and he went to all the big dances and he was the best dancer in town except Harold Wright who didn't count because he'd been to college in New York for two years! Don't you see? This was different. At first I can't remember what we talked about. I can't even remember if we talked at all. We just skated and laughed every time we came to that rough spot and pretty soon we were laughing all the time at nothing at all. It was all so lovely.
What is the tone of this excerpt from Daly's "Sixteen"?