At restaurants in Austria, wait to be seated or ask before taking a table, keep your voice moderate, and expect service to be orderly rather than rushed; it is normal to say "
Mahlzeit" around lunchtime in casual settings. Tipping is modest and usually done by rounding up or adding about 5–10% when paying the bill directly to the server, while in traditional coffeehouses the unhurried café culture is part of the experience rather than a sign of slow service.