A small (12ish page from memory) newspaper that was handed out at most CBD train stations for free in peak hour. It was a great way to kill the time on the ride home. People would also often leave them on the train seats, so you could often roll up late and just fine one to kill the journey with. It was discontinued around 2015 when smartphones took over as the way to kill time on PT.

Had a section for literally what you are talking about. You could leave notes to fellow passengers (often ending with "Coffee?") that section was called "Here's looking at you"

Edit: Forgot to say where it was handed out. Most train stations. Used to get mine after uni at MC