In this paper, we proposed a system that allows users to interact with the virtual world. Users can interact with 3D virtual objects in first-person perspective through active 3D glasses and 3D screens. The system includes three core algorithms: 1) Fingertip Tracking by OpenPose and Kinect kits. 2) First-person perspective. 3) Interaction between users and virtual objects. We hope that this system can bridge the gap between humans and computers.