Giday mate, I might be of some help here, a little background first.

Kiwi born and left for Australia at 20 yrs of age. NewZealand was a fantastic place to grow up, the move to Australia for me was good (much warmer)

Much of what people have said here is spot on and you will have no problems getting on with the locals and remember just be yourself also chicks dig the acsent, it's got me why but they just do.

Another thing dont eat that Marmite crap it's discusting nothing like the real Vegimite, trick is to spread it on very thin.