According to one embodiment, an eyeglasses wearable device includes a sensing signal acquisition module configured to acquire sensing signals from potential sensors, a display configured to display display data, a display data output module configured to transmit first display data to the display, a characteristic determination module configured to determine at least timing of blinking of the user based on variations in the sensing signals when the first display data is displayed on the display, and an oversight determination module configured to determine whether the user has overlooked an important display position in the first display data by comparing the timing of blinking with an elapsed time position of the first display data.
