The train culture here in Denmark is composed mostly of keeping to yourself if you are riding solo, or to your group if there are several of you.  Seldom do people talk to strangers.  It’s all about being n your own little world.  Actually, it is like that in a lot of public places but that doesn’t mean Danes are standoff-ish.  In fact, they’re super sweet if you ever get the chance to see it.  Take today for example.  I fell asleep on the S-tog on the way home and, being the last stop, I was probably just sitting there with my head all crooked when everyone left.  I had no idea.  But thankfully a nice Danish lady gave me a shook and told me we were in Koge.  She did it all with a nice big smile too!