Now that I have recovered from the “come up against Maori culture” opener, which I am going to assume is just badly worded….
Interesting question.
Using a working definition of “the behaviours and beliefs associated with a particular group” then there are lots of qualities that can be defined as British.
Justice and fair play
Liberalism
Stiff upper lip
Having milky tea in the afternoon
Cricket
Free press
Shakespeare
Moaning about the weather
Enjoying moaning about the weather
Quiet unspoken patriotism
Acceptance of other cultures
I am sure one could fine examples counter to all of these, this is more about impressions I think, culture is hard to define as it shifts.