Don't put silly non-words like UM and UH in your sentences. Say a few real words, insert a comma, BE SILENT, then say a few more words. That's how sentences should work. If you do that, people will know that you are BRILLIANT – Roger Love

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Speaking: Using a "sing-song" quality when you are speaking - a quick 2 min video to help you improve the quality of your voice – by the best vocal teacher in the world to me