What's considered rude that travelers do in Zurich?

Talking loudly in public ranks highest on the list of behaviors that irritate Zurich residents. Swiss German culture prizes discretion in shared spaces: keep your voice down on trams, trains, and in restaurants, and never take a phone call on the Glatttal tram or S-Bahn without stepping away or at least speaking quietly. Littering is taken seriously and genuinely shocks locals. Jaywalking is technically illegal and widely obeyed, so crossing against a red light, especially near children, draws visible disapproval. Recycling incorrectly is a social offense: Zurich has a precise system of color-coded bins and paid waste bags (Zürisäcke), and throwing the wrong item in the wrong bin is noticed. Showing up late to a dinner or meeting without warning signals disrespect. Finally, entering a shop without acknowledging the shopkeeper with a "Grüezi" reads as rude, not neutral. These are not unwritten suggestions — they are genuinely felt social norms.

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