Oh no! I had a friend once at school, who asked every person, male or female about their birth dates, just to see if they would "match" her!
Face reading? I sometimes do that, but it's not always a proper method to know if someones character is negative. Sometimes we interpret peoples reactions wrong. I have made that mistake a few times and other people have made that mistake with me a few times. They often say that I'm angry, while I'm not often angry, I've been sad a lot though, but not angry. Also my eyesight isn't very well, so I frown a bit to see something or someone better, and a few times people thought I was mad, but I wasn't. And once I thought someone who kept looking at me was insulted by me, sometimes my opinions insult people while I don't always intend to insult someone, so I thought, did I do or say something that might have been insulting for her? But she wasn't insulted or angry at all, she was trying to remember where she knew me from, she was a Pakistani from my childhood, we used to visit them often, but I hadn't seen her in years. Our families didn't visit each other any more. So I didn't recognise her, she was changed so much. So was I, but she had noticed something familiar about me.
I think we have to be carefull with our interpretations of other peoples expressions. We don't know what's going on in their mind.