Avatar animation with Alice

Hello,

I´m student of computer science course at a university in Brazil.
The professor requested us to do an animated avatar using the Alice software.
In this Avatar, the user should ask questions to the avatar and avatar should answers these questions, i searched the forum about this type of interaction, but i dont found.
How can i create an animated avatar with alice software, the way i was requested by professor of the course?

Best Regards.
Regis Araujo