How can someone who doesn’t speak English make friends with foreigners?

When communicating with a foreigner, listen carefully and pay attention to his gestures. It is not difficult for you to understand what he wants to express. If you still don't understand, ask him to write it down. The foreigner will write down the important words and ask you to look them up, so that you can roughly understand them. Of course, if this is the case, only simple communication can be done, and in-depth communication and joking cannot be done. If you want to make a joke, please learn English well before making a joke, otherwise you will make a joke or misunderstand it by foreigners.