Almost human

A humanoid robot named "Yangyang" shows a facial expression during a demonstration in Beijing, China, April 29, 2015. REUTERS/Kim Kyung-Hoon

Spanish actor Antonio Banderas embraces a robot used in the film Automata at the 62nd San Sebastian Film Festival in Spain September 21, 2014. REUTERS/Vincent West

The HRP-4C humanoid robot appears on the runway at the Shinmai Creator's Project fashion show in Tokyo, Japan March 23, 2009. REUTERS/Toru Hanai

A humanoid robot named Han developed by Hanson Robotics reacts as the controller commands it via a mobile phone to make a facial expression in Hong Kong April 18, 2015.

A dentist demonstrates on a dental patient robot at Showa University in Tokyo, Japan March 25, 2010. The humanoid female robot was developed to give practical experience for dental students and can be used for examination purposes.

A reception employee of Nihonbashi Mitsukoshi department store (R) poses for a photo with a kimono-clad android robot named Aiko Chihira, developed by Toshiba Corp., during its unveiling at the reception desk of the store in Tokyo, Japan April 20, 2015.

Toshiba Corp. demonstrates its communications android named Ms. Aiko Chihira that can use sign language and introduce itself, Chiba, Japan October 7, 2014. REUTERS/Issei Kato

An engineer makes an adjustment to the robot "The Incredible Bionic Man" at the Smithsonian National Air and Space Museum in Washington October 17, 2013. The robot is the world's first-ever functioning bionic man made of prosthetic parts and artificial organ implants. REUTERS/Joshua Roberts

Visitors interact with a robot during the "Robot Ball" scientific exhibition in Moscow, Russia May 17, 2014. REUTERS/Sergei Karpukhin

Danish scientist Henrik Scharfe (R) poses with his Geminoid-DK robot during its presentation at the National Robotics Olympiad in San Jose, Costa Rica August 16, 2013. The Geminoid-DK is a tele-operated android in the Geminoid series and is made to appear as an exact copy of its creator, Professor Scharfe. REUTERS/Juan Carlos Ulate

A robot produced by the electrical engineering department of the National Taiwan University mimics the facial expressions of a human at the Taipei International Robot Show in Taiwan, October 19, 2010.

A humanoid robot named Kansei, meaning "sensibility" in Japanese, makes a facial expression depicting "fear", next to the word "Bomb" during a demonstration at a laboratory of Meiji University's Robot and Science Institute in Kawasaki, Japan June 4, 2007.

A robot with soft pneumatic fingers handles plastic sushi during a demonstration in Tokyo, Japan June 12, 2009. REUTERS/Michael Caronna

School pupils touch a humanoid robot named "Saya" as she takes on a role as a school teacher during a demonstration at an elementary school in Tokyo, Japan May 7, 2009. The robot can speak different languages and make facial expressions like happiness, surprise, sadness, fear, anger or disgust with motors inside her face. REUTERS/Issei Kato

Visitors watch a robot plays a clarinet in Shanghai, China November 2, 2006. REUTERS/Nir Elias

The HRP-4C humanoid robot "Miim", wearing a wedding dress by Japanese designer Yumi Katsura (R), attends a news conference with developer Kazuhito Yokoi after the 2009 Yumi Katsura Paris Grand Collection in Osaka, Japan, July 22, 2009. REUTERS/Toru Hanai

Andoroid Repliee Q2 (L) faces graduate student Motoko Noma at an exhibition in Tokyo, Japan October 31, 2006. Repliee Q2, with 42 actuators to generate human-like behavior, was developed by the Department of AdaptiveMachine Systems Graduate School of Engineering of Osaka University. REUTERS/Kiyoshi Ota