How does the negative look? It's kind of thin, isn't it?

Looking at what you uploaded, it seems there's lack of contrast but also lack of sufficient detail in the shadow area - indicative of rather severe under-exposure. If this is the case, what you can do is rather limited. I would still bump up the contrast quite a bit and see what you can get out of your negative.

If you want to dodge and burn, one area I would burn is the white shirt of the camera-man. It's quite distracting. I also agree the kid got to go but that's a little different discussion from what OP asked. I agree with the assessment though.