What's something considered normal in your country, but strange in other countries?

I'll start.
In Belgium we kiss everyone 3 times on the cheek as a way of greeting friends and family.
Not very coronaproof, i know.

Ohoo, there's too many.
It's a little hard to find pork in our country.
In our wedding traditions, don't ask for a girl before getting married, then henna night, then engagement, then wedding.
People older than us, like grandparents, are kissed on the hands, because it means that there is always a place above our heads out of respect.
That's what I can think of right now, but believe me, it's not just limited to that. 🙂

here in China, people eat visceras of animals.