How does use imagery in Annie's Baby: The Diary of , a Pregnant Teenager?

Imagery:

"I'm new here, and...I'm looking for a friend. A sort of, not embarrassed to be a sweaty, sporty sort of friend."

"I'm beginning to feel trapped and suffocated in this gray, nothing, empty existence. I want out! I need lights, music, excitement!"

"I'm sitting at my window looking at a smiling quarter moon, a sky sprinkled with shining, twinkling starts and listening to the music of the night and smelling its fragrances."