Best way to work on canned materials?

What is best way to work on canned materials. I feel like tripping from good example to another. Any tip what should I think of before bantering. I feel like nothing comes up naturally and my conversations get into too serious because in some cases, I just don't know what to say that will banter. And yeah that's the part so don't tell me that it's not it. For now, that's what I'm asking. So how to be a better banter?