Mr Quite Happy
But maybe, as a Brit, I am looking for ‘politeness indicators’ and get the most from other Brits, Germans from Germans, Belgians from Belgians etc. But I don’t think so.
I consider myself mainly British in cultural terms (born there), but having lived in Malta for quite a few years, some of that rubs off as well.
As well as acknowledging that 'polite' may look different in different cultures (you are right IMO) have you considered that cultural differences may also mean that 'politness' is more valued in Britain than in other countries and that other cultures may value other attributes more highly?
Personally, I prefer someone to be open, friendly and direct.
The acid test is the question from wife to husband 'does my bum look big in this?'
The range of responses will vary considerably and of course it is not all a consequence of culture.
Nonetheless, I do perceive some quite obvious differences between Northern Europe and Southern Europe.
Let me say that I agree starting with a smile and warm greeting is a good idea universally, as your quoted exchange demonstrates.
It is sad that the response from the other person is sometimes to ignore it, but hey ho - at lest you found someone who appreciated your courteous approach.
Lastly, the gold card/top tier card carrying tossers that push in at the front of all the queues
Slight vaariation on this theme, if you ever have to travel through the old terminals at cairo, whe it is busy, slip the porter 5 egyptian pounds (about 60p) and he will lead you straight to the front of the queues to pre-scan you luggage before check in.
Pushing in? Absolutely, but that's the way they do things.