There's a button there at the door. Push it and they'll let you in. Take the elevator to the zero floor and someone will meet you there and escort you to your appointment. On Public Transportation Note that you can keep your luggage cart with you all the way to the train. You do not have to leave it in the airport.
Violent crime is very rare in the Netherlands but theft is common.
When you leave the customs area, you can get money exchanged at a number of exchange windows located in the airport. Then go directly to the train ticket counter. There are signs indicating the train hall, and you can also refer to your maps. The punched strips are good for travel within one to two zones for one hour. Train schedules are posted on large yellow signs in various places throughout the train hall.