A navigation system is configured to generate a sequence of driving instructions for directing a driver of a vehicle from a current location to a final destination. The navigation system is configured to capture sensor data that reflects the field of view of the driver and to identify objects in that field of view. The navigation system then customizes the driving instructions to reference specific objects, thereby generating context-specific driving instructions. The navigation system is also configured to identify particular objects upon which the driver is focused, and to generate context-specific driving instructions relative to such objects of focus. The navigation system may also provide correction information to the driver upon determining that the driver has incorrectly focused on a different object than an object referenced in a context-specific driving instruction.