The glasses also have special lenses to let the user see out or take a secret nap when they want. (Agencies)
Professor Hirotaka Osawa from the University of Tsukuba who developed the glasses said they could simulate reactions when users are distracted or busy.
"Our developed society requires workers to behave more socially," Osawa told the reporters.
"AgencyGlass aims to support such kinds of emotional labour by extending users' social abilities with technology, just as robots already support our physical labours and computers support our mental activity," he said.
The glasses feature two OLED (organic light-emitting diode) screens, which are controlled by either a smartphone or PC via a Bluetooth wireless connection.
This computer is also connected to a camera to take readings from the wider environment.
On the glasses gyrometer and accelerometer sensors are fitted to one arm to monitor the user's behaviour, while a battery sits on the other arm to power the device.
If the user nods, the glasses show a blink, if they shake their head, the eyes blink several times and if they incline their head, the eyes look upwards.
If the computer's facial recognition software detects someone looking straight at the wearer, the computer-generated eyes move and gaze back at them.
Although these are relatively simple expressions, Osawa said they allowed others to feel they were "cared" about, while freeing the user of the need to "control their emotions".
The glasses also have special lenses to let the user see out or take a secret nap when they want.