Shop at casual pace. Be nice to the store employees but don’t try to keep track of where they are (because it’s obvious when you do). Do not be greedy.
Store employees see people stealing or at least people who look like they’re stealing everyday but will generally only confront those who are either stealing high quantity/value of stuff, steal at that store frequently or are annoying to the employees in some way (are rude, noisy, cause hold ups or make work by leaving stuff around or making demands).
If you ever get confronted then it was an oversight and you ask to pay for whatever it was (because you want the item, not because you were caught). You do not try to defend yourself as not stealing, why would you? the very idea of stealing has never occurred to you in your entire life.
Despite only being 18% of the population the Maori have 100% of the mana