I once observed a friend work through her assignment in school. From that one session, I learned so much. She didn't fire away with her camera but she just kept walking around her set up. Sometimes, she would bend down and then later on, she would switch to stepping on an apple box. She would pause for a few moments then subtly shift from left to right, up and down. The most interesting thing she did was to go behind and look through the spaces in between the back of her subject. I can't remember exactly what she said but it was something like "you should always look at the opposite of what your first instincts tell you. Sometimes, it'll surprise you--"