I scammed somebody on psn home by making him believe I was a psychic.I didnt take his money or anything...?

At the end, I told the guy I was a fake and to be more careful next time. I find it fun to kind of scam people. Was it wrong for me to do that? Should I keep doing it? I done it a couple of times, and I promise I never took anything from my victims or ever will. Another question, why do I find it easy to scan people? Most people do believe I'm a psychic. All I do is ask questions that have obvious answers, and I look at their body language to see if I'm closer to the truth. For some reason, I can also sense some kind of body language through word communications. Are people that gullible?