in fact
Just like doing things, we should pay attention to reality, don't blindly pursue to decorate with gorgeous words, and don't grandstanding.
popular
Avoid abstruse words and try to use popular language, such as common sayings, two-part allegorical sayings and humorous jokes. You may get twice the result with half the effort.
brief and clear
Speak concisely, don't be wordy and have nothing to say, so that others won't understand you.
mild
If you put on airs in your speech, the audience will be very disgusted. In this way, you will not only fail to achieve the purpose of speaking, but also affect the mood of the listener. I hope you can remember that modesty is the virtue of a speaker.