I love taking pictures that tell a story. So often, it feels automatic to put the subject of a photo in the center of the frame. I've learned that you can add drama and make photos a lot more artistically interesting by putting the subject of your photo off center.
Imagine your frame is cut into thirds vertically, like a tic-tac-toe board. Take the photo so the subject of your photo is in the middle of one of those lines that are cutting the frame into thirds.
If you use automatic focus, put your subject in the center of the frame of the camera, then hold the button down part-way, until it focuses. Then, while maintaining the part-way push of the button, shift the camera so the subject is off-center, then click the button all the way to take the picture.