How do people know foreign friends? What are the advantages of knowing foreigners? Do you have any foreign friends and do you think having foreign friends is a good way to know other countries?

How do people know foreign friends? I think nowadays we have a lot of modern apps where people can talk with foreign students or people. But I've never used these apps, so I don't know anyone who is foreign. However, I think there are a lot of advantages to knowing foreigners. For example, when you [...]