Girls float, keeping their ears below the water surface. Boys brains don’t work well. Girls formulate complexity. Boys speak in onomatopoeia and crash into things. Boys will get tossed if they play with dolls and soon learn that rocks and discarded metal pipes are sufficient play things. Girls color in the lines. Boys pee in public. For girls, every object lying around is a weapon to learn because boys will rape. These girls play with swords and punch with fists when not dressing themselves for the long swim at the end of summer.