Facial movements and micro-expressions spread emotions between people. When you see someone angry or laughing, their expression can trigger the same feeling in you, a process called emotional contagion that builds empathy.
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So the people, they are seeing the movement on your face. Hmm. So if they see the movement, they can feel, they can go to empathize. They, there is some mental, how can I say, process in the brain. But this process, it attaches to the feeling. So if you see me in anger, let's do the anger face. Let's press the lips tight. Also the vocal change by the expression. So this, you make— you will feel that Roxane is something about the Roxane, and you might get this confusion in your brain. Because if you don't, if you are in a calm position and you see an angry face, maybe you want to run because you want to get involved with this emotional fog. So if you come in my fog, you will get influenced for my emotion. So this is contagious. That's why you said before, if you see somebody laughing in the trains, this video is all around the globe, you were laughing. It's not only the sound, you see that, you know that the other is enjoying. There is the joy, the joyfulness, there is this happiness, and there is— you start, haha. So you are going— if I do it, if I keep on doing it, I'm sure you will all laugh. You will burst into laughing. It's contagious, isn't it? Yes, it's contagious.