You are visiting a country where there used to be big distances between people, historically we did not trust other people very much. many posters above me have posted excellent points as to why it is so. Dont measure us to Spaniards. Measure us to italians and germans maybe. I would like to add that I think there is a big difference on the cities. Some have much more students than others and therefore more people in the same boat as you. We dont intentionally mean harm we are just very stuck to ourselves sometimes..the norwegian dream is living isolated away from others. Also we notice outsiders becoming pissed if they dont get their way with us. Dont be stuck in yourself while travelling