LPT: When you move abroad, the first question to ask locals isn't where to live or what to eat. It's "What do foreigners always get wrong here?"
I’m Italian, lived in two different countries that weren't Italy. spent the first months in each one asking the standard newcomer questions: where should I live, where should I eat, what should I see. All the answers were useful, but they didn't actually help me fit in anywhere.
The question that did help came by accident. I asked a coworker what foreigners get wrong here that locals notice but never say. She gave me a list of things I’d been doing for months without realizing. Don’t ring the doorbell after 22:00 because the entire building considers it a crime. Saying "Wie geht's?" to a cashier means asking about their lower back pain unless you signal otherwise. Don’t show up at someone's apartment without texting first, ever, even close friends. Tipping more than 10% reads as weird, not generous. And at the grocery checkout, you bag your own bags fast, or the next person starts piling their things on top of yours.
Every one of those was something I’d been getting wrong. And the locals had been quietly registering it.
The magic of this question is that it pulls out the unspoken rules locals don't think to mention because they assume everyone knows. These are the cultural defaults you'd otherwise learn the hard way, by accidentally offending someone or having a friend direct enough to actually tell you. Ask it within the first month. Ask it of multiple people from different backgrounds. Write the answers down.