Met a guy at a German language meet-up who let me know that I was first person who didn't ask him any questions about / discuss WW2 or nazis.
He actually grew up in East Germany in the 80's— also not great, but no one he talked to even knew that Germany had once split. They only wanted to talk about WW2. It made him very uncomfortable.
We got to discuss a lot about American culture and people's weird obsessions and developed a close relationship. It was fun!