I Know Who Likes You by Doug Cooney
Newly appointed Little League team manager, Ernie, fears it's the end of the Central Comets when Swimming Pool's mom gives her an ultimatum: Go to charm school, or no more Little League. Swimming Pool, the tomboy -- in charm school? That's a stretch. And no matter how hard she tries, she can't seem to get the hang of acting like a "girlie-girl." To make matters worse, Ernie's dad is dating Cat Lady, and Ernie's teammates think it's a big joke. But just when it seems like all is lost, Ernie comes up with a plan: He'll enlist Dusty and open his own charm school. Now if he can only figure out who left him the note that says, "I know who likes you."