Good acting is thinking in front of the camera. I just do that and apply a sense of humor to it. You have to trust the audience to get it.

Good acting is using your imagination to become another character in front of the camera. It is not just memorizing the lines that you are given; you need to create the character, and make decisions regarding how the character would respond in a scene. A sense of humor can add a lot to a performance, and the actor should trust that the audience will understand the jokes, as well as the overall performance.