How to: Take a long exposure shot with sparklers (could use glow sticks as well). Idea: Have a person/people in the shot who are standing still, then have someone else run around them with the sparklers making shapes/lines/words.
This is a great example of a simple light painting photograph. This gives a fantastic vibrant affect on the shoes and its laces. The light trail affect has been created by a light source tracing around the subject.