Thinking you can read someone's body language and act on it is dangerous, especially sexually. Two high school students on a couch: one thinks he knows what she wants, assumes consent, and makes an unwanted advance. The real problem is the arrogance of acting on a guess instead of asking.
Well, if you're making decisions based on body language, and it's unreliable, and we're talking about somebody else's body or your own, this is suddenly dangerous. Let's say we have 2 high schoolers. Let's say this is a couch, not 2 chairs. And one of them, maybe like many of you, is sitting there thinking, I can read body language. It might not be perfect, but I can read it. I can tell they want me to make a move. So they make a sexual advance. This person does not want it. By the way, does this happen? Yes or no? Yes. It does. Right now, what's interesting about this scene is they thought body language worked, but what they forgot is body language relies on 2 things: assumption and arrogance. See, the assumption that I know exactly what you want me to do with your body, the arrogance that I have the right to do it without confirmation. I don't think anybody in this room wants to be treated based on assumption or arrogance, and I don't think anybody in this room wants to treat others based on assumption or arrogance.
