A group of students at the Intelligent Systems Laboratory (Nagai Lab) at the University of Electro-Communications (UEC) are developing a robot called DiGORO that can learn through human instruction.  A human performs the desired task while the robot watches, and after a few demonstrations the robot is able to mimic the task.  The robot has object and face recognition, and can add to its vocabulary by extracting unknown words spoken by a person.  It stands 150cm (5′) tall, weighs 120kg (264 lbs), has an arm length of 95cm (3′), and moves around on a modified Segway.

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[source: Nagai Lab (JP/EN)] via [DigInfo News @ YouTube]