Reversing societal conditioning at a Japanese hair salon. There’s shampoo, cut, color, perm — and peace — on the dropdown menu. — Salons. They’re a hub of energetic exchange, a place for you to dish the dirt on your neighbor’s affair or rant about your job. That includes manicurists, too. Picture Elle Woods and Paulette in Legally Blonde. They were each other’s confidants. They were each other’s cheerleaders. …