Turtle Boy - M. Evan Wolkenstein

Twelve-year-old Will likes two things: turtles and the local nature reserve. Everything else is a nightmare, because Will has a facial difference that has earned him an unfortunate nickname. But when Will's Bar Mitzvah community service project introduces him to RJ, a boy who is confined to a hospital room, Will discovers they both have strength to lend the other and that life is too short to live in a shell.