1. Be bold, 2. Don't panic 3. Speak fast
There are actually two problems to be solved here:
1. Do 
not . 2. Outstanding eloquence.
The former one is easy to solve, the latter one is slow.
One, first of all, how to say something not to offend others:
1. Praise yourself for your brilliance, only say it to your leaders or subordinates, don't say it to ordinary colleagues.
2. Talk less about the people around you, and talk more about public figures and movie stars. No matter how much you offend people, he will not hear them.
3. Praise more and criticize others less. In particular, the well-known and unresolved shortcomings of privacy cannot be said.
4. You must have skills in criticizing others. First, you must speak privately, not publicly. The second is to praise first, and then point out inadequacies. The third is to speak euphemistically, do not use straightforward words such as "failure" and "mistake", do not involve character or ability, and use euphemisms such as "slightly flawed" and "not perfect" as much as possible.
Second, how to be outstanding in eloquence:
1. Improve overall quality. Usually, if you read, listen and think more, increase your knowledge accumulation, improve your analytical and comprehensive ability, and reach out to hot topics, you will not only have something to say, but also have unique insights. This is the foundation of eloquence. Otherwise, people will repeat what they say, and there will be no eloquence.
2. Improve expression skills. One is logic, listing facts → summarizing the essence → analyzing the reasons → proposing countermeasures. The second is orderliness: place, character, beginning, development, and result, all are clear and clear, one line down, not stream-of- consciousness , montage like novels and movies , and people are confused. The third is vividness. When talking about things and people, there must be details, personality, metaphors, and suspense at the key points. Only when people listen to them are like seeing them and being there, the more they listen, the more they want to hear them.
3. Improve proficiency. Practice makes perfect, speak more and practice more, and eloquence will naturally keep pace with the times.