@askvinh: Notice the difference between the 1st & 2nd example. Can you see how when I paused, you actually PROCESSED the words I said? So often I see videos on social media that cut out all of their pauses between their words and it's no wonder why many people forget what messages hear. If you want people to take away your messages and what you say, you need to be not afraid to pause after a sentence. And the simple rule for when to pause, is whenever you say something important that you want someone to takeaway, pause after that sentence.