Sometimes when out at night with my camera, I like to practice panning. Panning is where you follow a moving subject with your camera and take a photo with a shutter speed that is slow enough to blur the background. It's best at night because during the day it is too bright to use a slow shutter speed unless you have ND filters to block the light. Panning is not easy--you can try to follow the subject along in the viewfinder, keeping the subject in the middle, but once you depress the shutter, you can no longer see through the viewfinder (if you have an optical viewfinder, like on a DSLR) so you have to intuit the motion--and often the subject ends up blurred along with the background and just looks like a mistake. But, once in awhile you might get one that you like. This one was taken with a half second shutter, and while the boys on bicycles are not perfectly clear, as an abstract image I kind of like it.