Information processing device, notification state control method, and program

Provided is an information processing device to enable a user and an outside person to communicate smoothly, the information processing device including: a necessity degree determination unit configured to determine, based on outside information indicating a situation external to a user, a degree of necessity that the user be notified of the outside information; and a notification state control unit configured to switch a notification state of the outside information with respect to the user based on the determined degree of necessity.