However, Australians often use informal greetings like:
* G'day: A friendly and informal greeting used throughout the day.
* How's it going? A common way to ask someone how they are doing.
* Good on ya! A phrase used to express approval or encouragement.
* No worries: Used to say "you're welcome" or "don't worry about it".
So, while "hello" is perfectly acceptable, you'll hear a lot of these more casual greetings in Australia.