OK, I think this album will illustrate what I mean by capturing personality or emotion.  I am linking it because of the comments.  I had less than 1 minute with each person.  It was chaotic, it was crazy and it was important. 
http://www.facebook.com/album.php?aid=429611&id=84868100230The photos make ME cry. So, they do what they are supposed to. They tell a story and make you feel.