[ninepoints]

You don't think that before doing this gesture, the individual would check if there were people waiting to get on the elevator?

[counttheforks]

Hardly seems like it'd save any time if they would.

[ramchip]

It doesn't take any time, you just see if there's people outside or not when the doors open.

[Dylan16807]

They're walking out, it will be clear if someone is there and take no additional time.