(1) Don't use common sayings. Common sayings will hinder your free use of language.
(2) Use as many numbers as possible. When you speak with more numbers, your language will be more vivid and convincing, and you will be more confident.
(3) Watch more TV. Television is the most emotional source of language, but we should pay attention to: don't just watch TV series, watch more consulting and interview programs, so as to learn other people's conversation skills better.
(4) Cultivate a sense of purpose. Speak with a clear goal, just like walking, and have a directional choice. This "choice" can help you avoid rambling in your speech.
(5) Learn some new languages. In daily work and study, we can often learn and absorb some new languages, which can better enrich our own language vocabulary.
(6) Cultivate the spirit of inquiry. In the process of study and work, I suggest you try your best to do it: either don't do it, do it well, and constantly explore various laws in life. You should know not only what it is, but also why.