Microsoft's virtual human, 'Milo', has appeared at the Technology, Entertainment and Design (TED) conference in Oxford, UK.
The appearance is his first public outing since being unveiled at the E3 Expo last year.
Milo is the brainchild of Peter Molyneux, founder of games developer Lionhead and the man behind titles including Black & White, Fable and Fable 2.
"I want to introduce a new revolution in storytelling," he said. "Films, TV, even hallowed books, are just rubbish because they don't involve me. It's a sea of blandness."
Molyneux said that he had wanted to create a character that would feel real, that would respond to players' emotions and recognise voices and actions.
"After three-quarters of a hour, he recognises you. I can promise you that if you are sitting in front of this screen, that is a truly wonderful moment."
He said: "We’re changing the mind of Milo constantly. No two people’s Milos can be the same - you are actually sculpting a human being. Some of the things you are doing will change the course of his life."
Molyneux said that Milo had been developed using artificial intelligence created by Lionhead Studios together with Microsoft technology. He hinted that the technology could form part of a commercial product in the future.