Sorry, according to irishcentral.com "craic is the Irish word that most confuses outsiders".  Count me in among the outsiders.

I mean, after a few vinhos do you start dancing on the table?

www.youtube.com/watch?v=aFSv-tq5GAY

BTW every country thinks it has stuff that outsiders don't have: cosy, sisu, gezellig, crown jewels, gemutlich, Saturday night sitting on my porch in Alabama etc.
What's the equivalent in Norge?

In Scotland, it's called session 

www.youtube.com/watch?v=YPZqiewonGI

Well, there is janteloven (sometimes known as the law of Jante). While Sandemose was as much Danish as Norwegian, I think Norwegians embrace the concept more wholeheartedly.

Jante's Laws?

1. You're not to think you are anything special.
2. You're not to think you are as good as we are.
3. You're not to think you are smarter than we are.
4. You're not to imagine yourself better than we are.
5. You're not to think you know more than we do.
6. You're not to think you are more important than we are.
7. You're not to think you are good at anything.
8. You're not to laugh at us.
9. You're not to think anyone cares about you.
10. You're not to think you can teach us anything.

“Probably the best beer in the world.” 
??
Are Danes a wee bit more boisterous than the Norwegians?

Paul, you have some "hidden complex" towards the Germans.

Well, speaking for myself, some of my own family are German. Imagine speaking Deutsch (or Schwaebisch..) to the grandchildren, was?

Nothing hidden about my mixed feelings towards Germans. Everyone here knows we have a German wing to our family.

I just found out that Wilmott is of German origin.

Celtic Britain was overrun by the Ostrogoths and Visigoths ("Oystergoths and Fishgoths") when the Romans left.