First, I don't make my living with my photography so not every picture needs to say anything.
That being said, I do try to take "good" pictures as well as "snapshots". What the pictures are trying to say really depends on what it is. I try to capture whatever the mood is. If it is kids sports, I try to capture the action, excitement, drama. If it is nature, I'm usually going for peacefulness. It really depends on what the subject is.