Editor's note: I'd like to introduce you all to the newest feature on Winnetka-Glencoe Patch. NT-How is our newest column, and it's meant to be a forum and resource for current, future and former New Trier parents and students. You'll see all kinds of topics on here, from all about prom (see below) and the social scene, to navigating New Trier's athletics, arts and academics. Here are some of the topics we'll address: Insider tips for when your kid is trying out for a team or auditioning a play, transitioning between grades, registering for the classes, choosing appropriate class levels -- …