yeah, i do this sometimes. i give martial arts instructions. of course, i’ve been in martial arts for about 10 years. but people can be fooled really easily. even if you arent a martial artist, you can give "lessons". people will pay good money to learn to defend themselves. even if its all bullshit. its a matter of psychology. give these people ideas, be smooth when talkin to them and make them feel like they’re learning. for example, tell them its all a matter of reflexes. give them ideas on how to sharpen them, work with them. prepare a plan before you into this. its easy for me to do, but it might take some more building. as long as you understand the idea of what you’re doing, you’ll be fine.