How do you say be quiet in Europe?

You can't say "be quiet" in a single way across all of Europe, as there are many different languages spoken. Here are some examples in different European languages:

Romance Languages:

* French: "Silence!" or "Taisez-vous!"

* Spanish: "Silencio!" or "Calla!"

* Italian: "Silenzio!" or "Zitto!"

* Portuguese: "Silêncio!" or "Calma!"

* Romanian: "Taceți!"

Germanic Languages:

* German: "Ruhe!" or "Sei still!"

* English: "Be quiet!" (Although English is not a European language, it is spoken in many European countries)

* Dutch: "Stil!" or "Zwijg!"

* Swedish: "Tyst!" or "Var tyst!"

* Norwegian: "Stille!" or "Vær stille!"

* Danish: "Stilhed!" or "Vær stille!"

Slavic Languages:

* Russian: "Тише!" (Tishе!) or "Молчи!" (Molchi!)

* Polish: "Cisza!" or "Cicho!"

* Czech: "Ticho!" or "Buď zticha!"

* Ukrainian: "Тише!" (Tishе!) or "Мовчи!" (Movchi!)

Other Languages:

* Finnish: "Hiljaa!" or "Ole hiljaa!"

* Hungarian: "Csend!" or "Légy csendben!"

* Greek: "Σιωπή!" (Siwopi!) or "Ήσυχα!" (Isicha!)

Note: Some of these expressions may be considered more formal or informal depending on the context.

It's always best to try to learn the correct phrase in the language of the person you are talking to. If you are unsure, a simple gesture like putting your finger to your lips is often understood universally.