As today is Chinese Valentine’s day — “愿有情人终成眷属”.

Love potion: OG version in English and CN translation version
This book is a masterpiece. It’s very scientific and useful. Some lucky people might be a ’natural’ at being charismatic, got it from their healthy family. Though the most of us pick up our charm over time, by building intuition, ‘gets it’, or simply mimicing others. The book is brilliant because it systematically break down those intuition and tricks into solid, structued, scientific (at least, explainable) mechanisms.