What I noticed is that most people I have met in NZ are very open to new friendship and are willing to be chat-up (if one takes the effort). There was an occasion not long ago, where I was talking to lady stranger in front of a store. We were both waiting for the store to open. We ended up talking for at least 30 minutes past the opening hour.
I wouldn't dare try this anywhere else where I would have been labeled a pervert.
I often tell people, I made more friends in NZ in a two-week period than 2 years in Asia.