Ugh! Mrs. Furley wanted the Human Interaction Class to discuss a boy's changes? Twelve-year-old River was having a hard enough time just figuring out how to humanly interact with the real people in her life. Like, she was happy that D.B. was her sort-of boyfriend, but now Kirstin was always flirting with him! And River was happy her friend Margaret had found a boyfriend, but then Noah passed River a note asking her to phone him at home. What was that about? Sure River wanted to keep Kirstin from D.B. and Margaret with Noah, but did it all have to be so confusing?Notes passed from girls to boys and boys to girls and girls to girls, dating and mating, flirting and posing--River could never have guessed that talking to a boy would be so difficult.