Definition of "loud" in Norway

Norway is , to my ears, a quiet country.

In my other country people use their voices. People express themselves much louder.
In fact, I myself sometimes speak very loudly.

Norwegians usually keep a much lower voice, and what they talk about in public places is also more controlled.
But some Norwegians are different, and I observed two yesterday and two today.

At the supermarket.
Two men, probably in their forties, looking a little worn out by life, were standing next to the cashier, and in loud voices talked about how much beer and cigarettes and food they each had just bought and talked to the female cashier as if she was an old aquintance. She, on the other hand, did not seem to be of that opinion.
The other seven persons waiting in line, looked to see who was talking so loudly, and one lady rolled her eyes.

At the post office.
Two men, probably in their forties, looking a little worn out by life, were waiting in line at the post office. These were not the guys from the supermarket. They had long hair under their army style caps and kept a loud conversation we all could take part in. As they moved around, and passed me I could feel the smell of alcohol . They were in good spirits, not aggressive, but probably just a little bit drunk. They were friendly to the clerk, but you could see how the around 15 persons waiting at the post office, felt uncomfortable.