Turn them on and click the button to the right.
You can teleport by hitting the 'up' button and activate elements with the trigger.
Hit to menu button to activate the menu after entering.
Use the arrow or WASD keys to move around and click and drag the mouse to rotate the camera.
Fix the 'gaze' of the reticle in the center of the screen on interactive elements to activate them.
Hit 'm' to activate the menu after entering.