If you want to de-emphasize your jawline, you want to have some volume in your hair up top. Somehow, that brings everything up and draws people to look at your eyes. When I first went to get my hair cut, it was long, down to the middle of my back, all one length. Each time I've gotten it cut since that fateful day, I've had it progressively shorter. Now, it's very short and I love it! I get so many compliments on my hair the way it is now, even from strangers. I'm a little biased about short hair now. LOL!
This is my driver's license photo. Aside from my being some 60+ pounds heavier, the long hair really emphasized my round face. The second shot was taken in 8/2004 and the third in 1/2006. It's shorter than that now.