Let's look at the elements that are in the story. Audience is very sentimental. Always plan the shape of scene. Don't rehearse things to do. Planning before on being the other person, then don't plan when you start doing.
People are afraid to be ridiculous.
What you do is plan up until lighting the match. You don't plan the explosion. Must play the discoveries, not line to line. Give the audience time. In the end, it can't look like acting.