We swear a lot. Like a lot a lot.
We casually drop the ‘c’ word into conversation without even thinking about it.

We don't do patriotism like America...that level of flag-wavery is deeply unsettling.

An entree is a starter, not a main course.

Aussies are fairly self deprecating.

Being asked hows it going isnt really asking how its going, its just a way of saying hi.

Too easy is a response to say we will do it, its not necessarily easy.

You will likely be given a nickname.

Regions have different names for the same foods and can get very snippy about it - ie parma/parmi, potato cake, potato scallop

Ordering beer is slightly different state to state.

We don’t really do tipping much, because we have labour laws that make sure people are paid properly by their employers (in theory at least).

Sometimes they say "but" to end a sentence, and will be confused if you ask "but what?".

"yeah nah" = no

"Nah yeah" = yes.

We give everybody nicknames. Few people get called by their actual given name. If someone gives you a nickname, it probably means they like you.

It’s not that unusual to see someone walking around in public spaces such as a shopping centre or city streets barefoot.

So, so many! I’ll just offer one:

We generally look down…. way down… on what we used to call “skiting”, but is probably more commonly known these days as “boasting”. That cheery self-aggrandising cataloging of one’s achievements and abilities, meant to underline how great one is, that American society seems to actually encourage under the banner of “self confidence”, is usually perceived here as “bragging”, and in general has the opposite effect from that intended by the brag-ee: we roll our eyes and our opinion of them goes down, not up.

Some related phrases admonishing this behaviour you might encounter:

Don’t big-note yourself

Don’t put the dog on

Don’t blow your own trumpet

Don’t be up yourself.

Australians seem to naturally add inflection to the end of sentences. We're not asking you a question, that's just how we talk.

That Australia is one of the most multicultural countries in the world. I think because of poor media representation, Australia is depicted as a overly majority white place when that’s really only the reality in small towns. Even in small towns I always seem to find at least 1 chinese family running a Chinese takeout and same for Vietnamese hahah.

We walk on the left. Stand to the left of escalators.

A lot if people called "dinner" "tea" so if someone asks you over for tea they mean a full meal.

Napoleon was forced to flee from an army of rabbits.

A 1631 publication of the Bible caused an uproar when it was discovered that one of the Ten Commandments had been misprinted to read 'Thou shalt commit adultery.'

In British India there was a little problem with cobras. The obvious solution was to put a bounty on them. The only problem was that the price for each cobra the British were offering was greater than the cost of breeding and raising a cobra. The result was people breeding tons of snakes to claim the bounty. When the government realized what was happening they scrapped the whole program. People raising the now worthless cobras set them loose.
The end result was a big cobra problem.