I dunno. Having seen the vast emotional incontinence that swept the UK following the death of Diana I find it easy to believe that large numbers of North Koreans might be truly emotional.
I believe it also. The people that have managed to get into NK generally report that some people seem genuinely loving of 'dear leader', as have NK escapees.
OTOH, look at those videos. When is the last time you saw people dutifully file into rows, and then burst into tears? The history of the nation is filled with the citizens in Pyongyang 'spontaneously' demonstrating their love for 'dear leader'. And of those refusing suddenly disappearing, along with a generation or two of their family behind and ahead of them. This is all well researched and reported - you make public spectacles on demand, or are never heard from again. It is required that you hang portraits of Kim & father, bow to them, and not hang anything else on that wall. If someone reports that you have been disrespectful - you disappear. As a tourist, if you take a picture of the endless pictures and statues of dear leader, you may have your camera confiscated if you don't do it 'correctly' - you know, he is not in the center, or you pose in front, or something. You, as a tourist, will be
required to bow to the statues that you visit.
Everyone in the country is required to wear a pin with Kim Il Sung. Children in Pyongyang, rather than receiving a normal education, are trained for hours every day to sing songs, do acrobatics, etc., all to venerate and entertain 'Dear Leader'. This is all referred to as Juche, which is basically the state religion of venerating the leaders as Gods.
So, ya, some people are genuinely sad. But if you don't cry in public, don't expect to be seen in public anymore.
edit:
this video is as good as any to support my claims. Hoever, there are other excellent documentaries showing similar things.