Then we will say: May I ask you a question? Don't tell each other: do you know this? That means you don't respect people.
Next, say your question in the simplest and most popular language, so that others can understand it, which also gives them time to think.
If you find it difficult for others to explain this problem clearly, tell them quickly: don't wait until you have time to tell me. This will make people feel that they have never lost face.
If someone asks you a question voluntarily, you should say: Are you in any trouble? Just say it. People will think you are kind.
If you don't know how to answer other people's questions, just tell them: please wait a moment, I'll come right away. When you find the answer, give it back to others. This will make the other person feel that you respect her.