1. A device to be controlled by human interaction, comprising: user interface circuitry to receive input from a user and generate output to the user; memory circuitry to store data at least regarding objects known to the device; and processing circuitry to at least receive input from the user interface circuitry, access the memory circuitry to determine if a target object identified in the input from the user is known to the device, cause the user interface circuitry to confirm the target object to the user based on a determination that the target object is known to the device, and cause the user interface circuitry to present an inquiry to the user based on a determination that the target object is unknown to the device.