1 - Find a nice or dark location.
2 - use a tripod
3 - use an light such as the Pixelstick (http://www.thepixelstick.com/)
4 - use a slow shutter and experiment to find the correct shutter speed.
4 - and if you want to illuminate the person use a flash and set it to the rear curtain sync setting.
Sure. You essentially have to:
1 - Find a nice or dark location.
2 - use a tripod
3 - use an light such as the Pixelstick (http://www.thepixelstick.com/)
4 - use a slow shutter and experiment to find the correct shutter speed.
4 - and if you want to illuminate the person use a flash and set it to the rear curtain sync setting.
Hope that helps!