Ever since Lin Murong read that book, he went on to read other books about microexpression analysis and various psychology books.
He developed a new hobby, enjoying "Mind Reading."
For example...
"Lin Murong..."
"Galaxy, from your expression, I can tell you really want to hit me. So, I'm not coming over," Lin Murong proclaimed, puffing up his proud little chest.
Su Yinhe: "Oh, so you know I want to hit you. You learned all that just to avoid getting hit?"
"Yes," Lin Murong nodded, then quickly shook his head.
"No, no, that's not it. Of course, there are other uses, but it's especially useful here." Lin Murong had only recently discovered this clever trick.
"Alright, alright, you're tough." Su Yinhe saw his smug look every day and really felt like hitting him, but after Lin Murong had learned that microexpression thing, he could instantly tell when she was angry and wanted to hit someone, and he dodged quickly.
Su Yinhe couldn't catch him.