If you are planning to visit Australia, I can give you some advice. Mate is a noun, not a verb. Try not to laugh (too loudly) when you hear mothers yelling to their kids, “Put on your rubbers!” – rubbers are flip flops. Australian currency includes $1 and $2 coins, so don’t be so quick to throw away your change. And, pumpkin is good. The list goes on….
But, for the most useful advice, I have just two words:

keep left sign