Kat tells you how to: Paint with light

[] Camera should remain still throughout the process, tripod recommended.

[] Put your camera on a SLOW shutter speed. The image above was used with a shutter speed of 15. 

[] you will need a light source, such as a flashlight, sparkler, glowstick, etc.

[] The setting should be dark.

[] When shutter button is pressed, wave the light source around. This can be in random motions or writing, as seen above. 

[] You may want to write the word backwards, ( for example, if you were writing the word "Love", you would start from the right side and write a backwards L-o-v-e.), so it won't be flipped when on camera screen.