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To walk around you can press the arrow keys or W,A,S,D. To jump just press space. You can also move around by left clicking on the ground. This is a Click to Walk setting. You can turn this off in our Settings menu.
To enter fly mode, press 'F'-your avatar will start to hover. To fly up, press 'R' or 'Page Up'; to descend, press 'C' or 'Page Down'. Use 'W' to move forward, 'A' to go left, 'S' to move back, and 'D' to go right. Press 'F' again to exit fly mode and land.
You can change your camera angle by holding the right mouse button and moving your mouse. You can also Alt+Right Mouse button to focus on a certain place. The mouse scroll wheel will zoom the camera in and out. The F4 button on your keyboard will enable Fly Cam. You can use the A and D keys to pan from side, and use the W and S keys to zoom in and out. If you want to rotate the camera, hold the right mouse button and move the mouse.