[LAblondeGPhi]

Good luck, full*hearts,

I would think it'd be a good idea to either remove any information referencing your school, or just be open about which organization and school you're referring to. You've given enough information for most people to figure it out, and I'm not sure if you're hoping to keep some level of ambiguity or not.

I'd give the same advice as I would for any job/internship/other interview:
-Learn about the organization and practice articulating why you want to be part of it, what you hope to gain from membership, and what you can contribute to it.
-Practice (as best you can) finding that happy medium between relaxed, confident and attentive. You want to show that you're interested, without coming across as desperately interested. You want to convey a sense of being at ease in your skin, without seeming aloof. And of course, you should exude confidence without being cocky.

And for any recruitment situation, it's all about perfecting your social and conversational skills:
-Get to know the other PNMs attending the events and chat them up (I would assume the representatives from the NPC group will be looking at how you all get along with one another)
-If you can, do some mock interviews with friends
-Before your interview, make sure that you're in good form: get a good night's sleep, eat a good breakfast, get a workout in, drink some coffee, etc.

Good luck!