The most common functions of mobile devices involve alerting the user; whether notifying of incoming calls and messages or reminding of calendar events, the system has to catch the user's attention. This causes undesired interruptions to those surrounding the mobile device user, and in some circumstances the notification can be disruptive even for the user himself. A wearable peripheral display, embedded in a pair of eyeglasses, was built to deliver notification cues in a private, subtle, and non-obtrusive way. The display is composed of arrays of small LEDs of different colors, each placed at the end of the arms near the lens. The LEDs are lit (at very dim intensity) to display moving patterns in the wearers' peripheral vision. The display has a Bluetooth interface, so it can be controlled by standard mobile devices.