Don't confuse New Zealanders with Aussies: "We don't like it!"
Don't expect to see Kiwi birds: "They are almost extinct. Irony!"
Don't make fun of rugby, Lord of the Rings, or the Queen of England: "All Blacks is a rugby team and probably a religion. Haka is a war-cry performed before a war or, nowadays, a rugby match. Do not make fun of it!"
"Kiwis are proud of Lord Of the Rings!"
"The Queen of England is still a big deal here! We still celebrate her birthday and swear allegiance to her."
Don't freak out about people not wearing shoes: "It's perfectly normal to go about in public places without footwear, and in some cases a shirt. You will still be served.