Fast, like fireworks.

Just a quick hit after being out of town for spring break. Took the child to Disney in Orlando. If you haven't and you can, you should. Took lots of pictures in the 'snapshot' category. Love that cheap 18-55mm lens. Not fancy, but works great. 

At Disney World they have fireworks every night at 9pm. So if your shots didn't come out one night, you just wait for the next. I used a 50mm/1.8 for most of these and a Gorilla Pod to secure the camera to a chair in the absence of a tripod. Exposure time of about 2 seconds seemed to work pretty well.

These are a few of the good ones.