It could talk, now it will see.

You may have a webcam attached to your machine, but that doesn't make your Mac proactively "see" its environment.
William is developing "Observer", a technology that identifies objects in a visual feed, on OS X.
http://www.no-more-blind-computer.com/
A few movies examples are available on the project's website. Quite impressive if you ask us : the computer can recognise when one is on the phone, when one is smiling or frowning...