Autonomous Life is the key element making NAO alive and responsive. To be fully effective, it requires to be combined with Basic Channel and Installed Activities .
To activate or deactivate Autonomous Life , see: Switching Autonomous life on and off.
By default, when you receive your NAO, only the Autonomous Life is installed and turned on:
Alive, but deaf and dumb: Autonomous Life : ON - Basic Channel : OFF
In all cases, NAO wags slightly, and seems to be waiting for something to happen.
But he cannot understand your questions and has no conversation skills.
We recommend to subscribe to the Basic Channel.
Alive and responsive : Autonomous Life : ON - Basic Channel : ON
Then, NAO orientates its head towards human, and is able to react to basic stimuli, such as sounds, movements, or tactile contacts.
For further details, see: Interacting with NAO.