People often associate photography with the skill of taking a photo just at the right time to capture what appears to be an arbitrary—but meaningful—moment in time. This is often deceptive to the common viewer because they often attribute the photographer as being lucky. "You shoot a zillion shots, and one of them is bound to be good." That's true, but it isn't till you've shot zillions of zillions do you find that your yield of "good" pictures starts to improve. This is because at some point along the way, you realize that it requires getting closer to your subjects, both figuratively and literally. Once you achieve this, you begin to develop the second step of developing intent: refining the kinds of pictures you like, and trying to repeatedly get those kind of shots with each successive trip.
To some, a candid "grab" shot is the same as a "snapshot", but it is entirely different. Though a "grab-shot" may be taken quickly, it's quality is measured by its emotional impact on the viewer: a facial expression, the subject's juxtaposition with the background, his interaction with the environment or other people. This is the direct result of intent. By comparison, a snapshot usually lacks these features, and instead has lots of wasted space (parts that don't contribute to the image somehow), poor composition, or worst of all, a yawning viewer.
