Given that the exact same question is the current top post but for driving instead of transit, I feel this question was needed.
My answer: I saw some guys hooking up a Raclette Grill to the outlet in an otherwise empty German intercity rail waggon. They had it unpacked in one of these 4 person seats with a small table. No idea if that could work or if draws too much power from the board net. I just headed on to the next waggon.
I was reading a book on the train. A guy had the nerve to come up to me and ask me about the book I was reading.
I have peeked at book covers as I’m always curious. One day someone was reading a book called The Arranged Marriage. The plot was hilarious when I googled it.
One thing I noticed when I first moved to Japan:
When you buy a new book (they don’t do this at used book stores), they wrap it in paper. Kind of like we did with our textbooks with paper bags back when I was a kid in school in the US. But they use nicer paper.
This means that when you take your book out, nobody can see what it is. Unless you remove the paper.