In this book there are a lot of tips from a comedy professional about how to build funny statements and how to create a punchline.
Humor entertains the audience and leads to a better contact with the audience. The speech also stays better in the listeners memory.
In Toastmaster magazine there is an article by Judy Carter with tips on how to bring humor into your speech.
Click here: Toastmasters Magazin
Note: If Judy Carter sounds funny—and familiar—to you, it might be that you’ve seen her comedy concepts on display in the Engaging Humor path in Toastmasters’ Pathways learning experience. Carter shares her expertise in a Level 5 video in the path, as does Darren LaCroix, Toastmasters’ 2001 World Champion of Public Speaking.