There are three official languages of New Zealand, they are: English, Maori, and NZ Sign Language. New Zealanders call themselves Kiwis collectively. Kiwis are typically friendly and outgoing; they can be somewhat reserved initially yet they are always polite, and enjoy extending hospitality. They are quite easy to get to know as they say hello to strangers and will offer assistance without being asked, they do not stand on ceremony and are egalitarian, they move to a first name basis quickly and shun the use of titles. Kiwis dress casually, but neatly. Most restaurants do not have dress codes and except in business, dress is decidedly casual. Business dress is conservative, although jackets may be removed and shirtsleeves rolled up when working. New Zealand has no formal class structure. Kiwis take pride in individual achievements and believe that opportunities are available to all.