"What really knocks me out is a book that, when you're all done reading it, you wish the author that wrote it was a terrific friend of yours and you could call him up on the phone whenever you felt like it." Catcher in the Rye
I literally blush and sheepishly smile when a character does something embarrassing. I feel their embarrassment. So that forces me to also close the book and blush. And blush. Till my red cheeks turn back to normal!