Excuse me where is the airport?
Um, it's pretty far away. I can show you on the map on my smart phone.
Oh, sorry, and what I meant is how can I get there?
Well, that depends. Do you want to get there quickly or cheaply?
Probably the latter would be better.
All right. If you go down one block and take a left, you'll see the number 12 subway station. Take the number 12 all the way to Grove Street. And then transferred to the airport express' train.
How will I know where to change trains?
There will be announcements on the train. But I'm sure there will also be a lot of other people with big suitcases. You can just follow them.