Seen on Twitter. The City of Vienna has a few ideas on how to discombobulate the Viennese this April Fool’s Day. 1: On the tram say “I’m getting off” [so that people make room for you to get out the door] and then stay on. 2: Stand on the left on the escalators. 3: In your regular neighborhood restaurant order “Just a glass of tap water today”. 4: (my favorite) At the bakery buy “Brötchen” (rolls) and then ask for a “Tüte” (bag) to put them in. Both those words are High German and sound really weird in this context. Viennese would probably say “Gebäck” and “Sackerl”. 5: (also good for anyone familiar with the grumpy side of the Viennese) Smile at complete strangers on the street and greet them in a friendly way.
Sorry, in some ways you had to be there, I think, but they made me laugh.
ecbinvienna 
Very Vienna-specific! Took me a moment to figure out the fact that Viennese would NOT use those words! Thanks for sharing!