Rule #1: Get down to their level
"Get face to face, down to eye level with the subject"
I took pictures of my dog Kirby. I took pictures around my school of a pay phone, some rocks, trees and decorations. An example of the rule is below of some rocks at school.
This picture is cool because the rocks in the front look really big and you can see the texture..
An example of violating the rule:
I took this picture of my dog looking down at him instead of bending down to get on his level.