Air Traffic Controllers do it with their tongue.
Related:
- Air Traffic Controllers do it in
the dark... - Air traffic controllers do it by
radar... - Air Traffic Controllers tell pilots how to
do it... - Air controllers nightmare:
A pack of F-117s landing... - It's time to boot,
do your boot ROMs know where your disk controllers... - C'Bers do it on
the air... - Flagpole sitters do it in
the air... - Flyers do it in
the air... - Hang-Gliders do it in
the air...
