The most interesting thing about photography is the freedom one is given with angles. The angle of the each shot makes it much more interesting.
The easiest way to create a unique photo is to think outside of the box.
Typically, photos are taken at eye level. Taking pictures from above and/or below the subject instantly gives the photographer a much more interesting shot.
Another option is through the subject's eyes. When a photographer is assigned to capture an event, a great option to capturing that event is through the particiapant's eyes.
For example, a photographer is supposed to capture a local carnival. This event is directed towards younger children. A great way to begin, the photographer could capture the carnival from their knees. This makes them see everything a child would see as he particiapted in the carnival activities.