Elizabeth Atkinson 
From Alice to Zen and Everyone in Between [PDF ebook] 

Alice enjoys playing soccer and working on her go-kart. But when she moves to the suburbs, Zen, the boy down the street tells her she has no hope of fitting in at her new middle school unless she starts acting more "like a girl." Alice suddenly realizes that being different can set you apart…and being friends with someone like Zen can set you way apart. Why does being yourself have to be so complicated?