Lots of applicants/parents read these forums and many probably never post, likely trying to glean input/advice/suggestions from the comments posted. For the vast majority of h.s. students, lacking any other specific knowledge of their background/experience, my general advice would still be that you treat the NOM interviews as something serious. Being able to 'read' the room during an interview isn't a skill you learn overnight and probably most h.s. students likely have had few (if any) significant interviews previously.