How to speak English without thinking

Well, for example, there are a group of people who are just like you, with the same level and attitude. You join the English corner or something like that. When no one dared to speak, the person sitting next to you suddenly spoke. Although it doesn't sound good or even worse than you, will you laugh at him?

Do you have the courage to laugh at his poor spoken English?

Conversely, if you speak first, do you think others have the courage to laugh at you?

If someone laughs at you, tell him:

You are only allowed to laugh at me in English. Thank you.

Personal opinion, for reference only.