You walk down the hallway at work and just as you are about to greet a co-worker, he instead stares at the floor as he passes by. Later on, you realize in a meeting that a “random” co-worker you smile at each day actually provides your most important reports. So you finally break the ice and introduce yourself. Then at a promotion reception in your honor, an old co-worker congratulates you but you can’t for the life of you remember his name. You fumble for a cliché nickname, leaving both of you embarrassed.
None if this would have happened if your organization simply had name tags.