New Zealand culture is shaped by a genuine, living Maori heritage alongside a relaxed, outdoorsy national character, with a handful of broadly shared norms holding nationwide.
Maori culture deserves genuine, informed respect. A hangi feast or haka performance at a proper cultural centre is a real encounter with a living tradition, not a costume show.
New Zealanders are informal. First names and a relaxed, direct manner are the norm in almost every context, from restaurants to business.
Take mountain and coastal weather seriously. Conditions change fast — check forecasts before any hike, and never underestimate an alpine crossing or coastal track.
Tipping isn't customary. Menu prices already reflect fair wages, and leaving a tip can seem unusual to service staff.
Finally, take biosecurity rules seriously at the border — declare all food, plants and outdoor equipment, and clean hiking boots before arrival, since New Zealand's controls are strict.