Go to the Route Management notice board to the right of Mr. Uhrig 
office, the Airport Director, and steal four paper clips. Then, go 
to the Cargo Department, located in the left corner of the Airport.
Give the operator the paper clips. He will accept them and say that 
he would rather use the paper clips than the liquid glue. Take the 
liquid glue, which is located in front of a small box next to the 
operator crane. Go to any part of the first floor in Airport and 
drop the glue on the floor by clicking on it (at the bottom of the 
screen). When any of your opponents step there, they will get stuck 
temporarily. This is useful when done early in the morning immediately 
after the reunion with Mr. Uhrig. It will prevent your opponents from 
getting to the AirTravel agency before you.