I remember my first Greyhound bus experience about 10 years ago, travelling from NYC to Boston. I'd just moved to the US and had hardly any friends. I remember sitting next to someone on the bus - he looked over and realised that we were both scrolling HN on our phones! We struck up conversation and, long story short, he ended up inviting me to a meetup group at MIT from which I've made a few lifelong friends.
There's a lot that's weird about the US but I really do miss the cultural openness to forming new human connections that's much more prevalent there. I wonder how many interesting conversations and experiences I'm missing out on by staying silent and putting headphones every time I take public transport here...