Originally Posted by
midlevels
That's correct, but you should be able to walk if you know the way. Granted nothing is signposted so you may need to ask around.
Meeting at the gate could be problematic if the earlier flight is delayed and the later flight is early or something else goes wrong.
If you wan't to head to town immediately after the second person arrives:
there are three walkways to the airport express platform after you exit customs. The right and the left one have freestanding ticket counters. There is a sitting area between the walkway and the ticket counter. You could meet there (ust agree on leftmost or rightmost walkway) - it is also close to the arrivals lounge. The first person arriving could kill some time there.