Incorporate things like roads, streams, shorelines, railway lines, or even railings, into your images. These are referred to as lead lines and are a great way to capture the way that a viewer is going to look at your photo. They will lead your viewer's eyes through the scenes of your photos.
In life, people are trained to always create things that are almost perfectly even. While symmetry and perfection are things people look for, try and take pictures of your subject off center. Beware of auto-focus features that lock in to whatever is in the center of the lens. Use manual focus instead, and lock your focus before snapping the picture.
Create a photo quotation.