do you mostly use to greet someone or if you say goodbye to someone ?
http://austriantimes.at/news/Blog/2012-04-29/41284/Does_Servus_really_mean_Yo_Bubba%3F_Hello_and_Goodbye_in_Austria.
...
In Austria you can use a lot of words and it also depends where you live.
http://www.spectra.at/archiv/Aktuell_05_12_Grussformen.pdfYou mostly say:
* Servus
* Griass di
* Heil (mostly used in Tyrol, like my brother does)
* Hi
* Hallo
* Grüß Gott (to older people who I don't know)
* Hawedere
When saying goodbye:
* Servus
* Pfiat di
* Ciao
* Heil
* Tschüss (much more used by women)
* Auf Wiedersehen/schaun (to older people who I don't know)
* Ba-Ba (mostly used in Vienna)
...
You can use "Servus" and "Pfiat di" in almost all of Austria, except in Vienna, where most people will think of you as "provincial" if you use these words. Vienna people are more snobby and use "Grüß Gott" or "Guten Tag", like the Germans.
"Servus" is a good word though, because you can use it for greetings and saying goodbye alike.
You can pronounce it like "Servus" in urban areas, "Serwos" in the Salzburg/Tirol area and "Servas" in the Lower Austrian area.
In Vorarlberg, they talk Swiss German, so this is a totally different construction site and they are using "Grüazi" and "Aufwiederluaga".
What about you ?