I’ve had interesting chats with strangers on trains, plains, busses, etc., and learnt some neat origami skills as a result. Luckily, there wasn’t a psychopath who wanted to kill my ex… This was a good book, but it did seem dated – the concept has been copied and improved many times, and the prose clumsy by modern standards (for example very wordy and POV switching mid-paragraph). Still, a good read and a solid 4* rating.
See review on Goodreads.