Yes - Norwegians are known to be hard to get close to. It is a reserved culture - that I am sure many times are mistaken for unfriendly.

Still I very much doubt that the fact that you are from Netherlands make people reluctant to talk to you or befriend you.

As a norwegian myself - I do not find norwegians unfriendly at all (maybe because I get the culture - and do not mistake reserved for unfriendly). Compared to many of the east European cultures - I see much more smiles and open, friendly faces in Norway then there.

I am not sure the reason for making this thread. If you are looking for tips to get to know norwegians - I would suggest to behave like your normal dutch self. Be a bit aggressive in your socializing ways - and you will get to know norwegians. Hopefully also find out that many norwegians are very nice people