Many Australians are very informal, and in such a setting, a shortened version of 'Good day' could be used; 'G'day' (pronouned 'gidday'). Such a greeting could then be followed by an informal 'How's it going?'
Also, just Hi or Hello will do just fine. (Neither of the first two mentioned greetings sound right to an Australian ear if said with a US accent.)
Since English is the most widely spoken language in Australia, it would be completely acceptable to greet a person with 'Hello'. Similarly, depending on the formality of the situation, other acceptable greetings would be 'Good morning/afternoon/evening' or 'Hi'.
N.B. For those who doubt whether Australians really do say "G'day", 2010 studies by Social researcher Mark McCrindle indicated that 70% of Australians readily use the word G'day, and that G'day mate is one phrase that most Australians are proud of.
"Hello" and "goodbye" work fine for most people, as well as "good morning" or "good afternoon".
Informally, g'day is often used between friends and neighbours, as is "hi". There are various informal ways to say goodbye, such as Cheerio, cheers or simply
'bye. There are other older forms of goodbye still heard occasionally, two being Hooroo (or ooroo) and Hoo-ray. When talking to children adults often use ta-ta though this is not purely Australian.
Well they kind of say hi like us but just with an accent like this ELLO MATE it's or just get a dictionary to translate.
G'day is the most common and heard of slang word for "Hello" in Australia.
Australia is an English speaking country, so it would be the same as in the US, Canada, and other English speaking countries.
Some will say G'day mate.
Ello
Hello- Hello Goodbye- Bye or Paalam
salve=hello vale=goodbye
Hello - Talofa Goodbye - Tofa Soifua
Hello = Hola Goodbye = Adiós
Olá - Hello Adeusinho - Goodbye
Jambo is hello and Kwahari is goodbye
Hello = Hola Goodbye = Adiós
Hello : Nomoskaar Goodbye : Bidai
To say Hello is Ni hao And to say goodbye is Zai jian
to say "hello" you say "talofa" and to say goodbye you say "Fa".
hello-hujambo 2:goodbye-kwaheri
we say hello ''sainuu'' and goodbye '''bayartai"