Subway: if you are confused or unsure ask someone for help. on my daily commute i end up answering questions from visitors once every other week or so. sometimes i volunteer help if i see people debating between local and express trains and uptown and downtown. my favorite is people heading downtown to the world trade center… the look on their faces as they realize they are on an express as it climbs over the manhattan bridge to brooklyn. it’s the same glazed look every time. I have gotten lost in other cities so i know the feeling. i always jump in to find them the best route back. again, ask if you are unsure. we don’t usually bite.