In my travels, I've found old grandmas as the best people to interact with. In most cultures, those poor old ladies are mostly ignored anyways, so they're always happy to talk to you even if they don't speak your language. Of course they can spot fake a mile away, so be genuine. I was traveling in Italy and had a blast "chatting" with grannies on the streets. Same in Armenia. And Belgium.
I've been talking to so many grandmas these days, and it's mostly them approaching me. It's usually something sweet and makes my day, but sometimes, it's heartbreaking to hear the troubles they've been dealing with alone because there's no family to rely on.
I think talking to the elderly is a great way to learn how society has shaped people's lives over many decades.
Hah, yes, this! I will absolutely accept their flirting and let them call me a "handsome young man" in return too hah