Use a built-in webcam shutter if your device has one
Slide a physical webcam cover over the lens
Place a small piece of opaque tape over the camera
Use a removable sticker or privacy tab
Attach a thin piece of paper or card over the lens with tape
Close the laptop lid when not in use
Disable the camera in your device settings or BIOS if possible
Unplug an external webcam when not in use
Use a camera privacy cover designed for your device
Keep the camera covered except when you need it