Social Factor
The basic rules of Australian social etiquette do not relate to how a fork should be held, or who should be served first at a dinner table. Instead, most of Australia's rules relate to expressing equality. Basically, as long as you appreciate that Australians want to be treated as equal irrespective of their social, racial or financial background, anything is acceptable.
Displays of wealth may be seen as signs of superiority and frowned upon accordingly. Likewise, the acceptance of generosity may be seen as a sign of bludging or inferiority and may be frowned upon.
The relaxed attitude of Australians has been known to cause problems. Because Australians are difficult to offend, they are not sensitive to causing offence in others. To outsiders, Australians often appear very blunt and rude. They tend to call a spade a spade when perhaps more tact is required.