Try the following tips to learn to speak in a more authoritative way at work and even at home. Handy as this phrase may be, it's important to reduce the chances that anyone will interrupt you in the first place. Next time a Trevor interrupts, you can jump in: "Maryann was speaking, Trevor. John Bowe is a speech trainer, award-winning journalist, and author of "I Have Something to Say: Mastering the Art of Public Speaking in an Age of Disconnection." Take CNBC's new online course Become an Effective Communicator: Master Public Speaking.

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Persons: Handy, Trevor —, Trevor ! Bam, I've, Trevor, I'd, you've, John Bowe Organizations: Yorker, The New York Times Magazine, GQ