I do magic to my friends at school. I was in a class with a friend who knows I do magic and I was doing it to other people and he came over. He has an idea of what I am doing and he started blabbering about what I did. I wanted to keep showing the other people because it was engaging to them but not my Friend. I don't want to be mean to him but he is trying to reveal how I do stuff. What do I do? Do I not do magic when he is around?