How to connect?

How hard it is to connect to people? To even meet them? I would say in Germany, it is pretty hard. I have never been really good with this, but even if I get better everyday, I still struggle so hard to connect. Is it because of the language barrier? It shouldn't be a problem. At least from where I am from, this would not keep anyone as an outsider. How can I be invited to be more of a part of other people's life? How can I be interesting and missable? I am not saying I never managed to do that. I have some pretty good friends, but I miss more. Most of them are leaving and I am still stuck in the same place.