How important is etiquette in Greece and how does it differ (if at all) from...

[asimenia]

...the list below? Modern etiquette instructs people to
Greet relatives, friends and acquaintances with warmth and respect
Refrain from insults and prying curiosity
Offer hospitality equally and generously to guests
Wear clothing suited to the occasion
Contribute to conversations without dominating them
Offer assistance to those in need
Eat neatly and quietly
Avoid disturbing others with unnecessary noise
Follow the established rules of an organization upon becoming a member
Arrive promptly when expected
Comfort the bereaved
Respond to invitations promptly.
Accept gifts or favors with humility and gratitude.
Acknowledge gifts or favors with prompt tokens of thanks (e.g. a thank-you card)
The list was taken from
http://en.wikipedia.org/wiki/Etiquette
I still try to do most - however being in Greece so long has allowed me to

Have open curiosity - I stare at people!!!!
Dominate conversations!
Eat noisely - quickly and often full mouth- talking loudly
Not respond to invitations
and
Not send thank you notes (although I do call to say thank you the next day)
This wasn't meant to insult - just to read and compare! I think most people/nations don't do many on the list anymore!