When I pointed to him his palms slipped slightly, leaving greasy sweat steaks on the wall, and he hooked his thumbs in his belt. A strange small spasm shook him, as if he heard fingernails scrape slate, but as I gazed at him in wonder the tension slowly drained from his face. His lips parted into a timid smile, and our neighbor’s image blurred with my sudden tears.
“Hey, Boo,” I said.

– Harper Lee

To Kill a Mockingbird, Chapter 29. This is the moment when Scout finally meets and speaks to Boo Radley. No longer afraid of him, she treats him as an equal and with respect. She knows that he has just saved her life and Jem’s and the emotion of the moment brings her to tears.