The Metaverse is an Internet-based, computer-created and socially connected networking space of three-dimensional virtual-reality worlds. In this keynote, the concept of the Metaverse is introduced, with a hybrid framework for communication, interactions and intelligent avatar behaviour. The general strategies including quantum strategies for the Metaverse are also proposed, with examples provided. In addition, relevant technologies including machine learning are presented. Moreover, analytics and decision making in the Metaverse context are discussed, with future research envisaged.