I'm from Brooklyn and I've been to Amsterdam a few times. It has to be the most layed back place on earth. I have yet to encounter anyone there being mean on the basis of being a foreiner or otherwise. All we did was hang out with locals get high and go to underground hip hop spots. If been to many places in my travels but I would have to say that Amsterdam is top 3 on my list of chillest places to hang out.... Go for New Years, its a blast.