Ask and insist to have it in view. Some people just don't think to ask, others are too embarrassed to ask, others too meek to insist. I've asked to have my things moved into my view during an opt-out. Recently, although the TSA employee said I could face the conveyor belt to watch my things, I asked that they be collected from the end of the conveyor belt, mostly to keep them safe, but also specifically said that it would benefit the other passengers and make things move more smoothly by not taking up half the space. Guy agreed and thought it was a good idea.