At my work, you can always tell who works on the manufacturing floor and who has a desk job by how efficient they are in the cafeteria. The suits (desk people) take their time, stand in the middle of walk ways, have small talk when they should be moving on, etc. The operations folk get what they need and skedaddle because we are trained to be efficient or make things efficient.

Move Karen! I know you have a long day of sitting on your butt, so why dont you move so I can have lunch? /jk mostly