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.
salve=hello vale=goodbye
Hello- Hello Goodbye- Bye or Paalam
Hello - Talofa Goodbye - Tofa Soifua
Jambo is hello and Kwahari is goodbye
Hello = Hola Goodbye = Adiós
Hello = Hola Goodbye = Adiós
Hello : Nomoskaar Goodbye : Bidai
Olá - Hello Adeusinho - Goodbye
Type your answer here... How do you say goodbye in Quechua
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