Probably one of the easiest ways to stand out in a typical US crowd. More noticable than hat and sunglasses. If the purpose it to make video surveillance not as notable but also not attract attention than a large hat and sunglasses in hot weather or a scarf and hat in cold weather (even better) will do the trick. Also, modifying hair color and facial hair features is a good trick.
You may stand out, but that isn't necessarily bad, so long as what they remember about you isn't enought to identify you and might even misdirect them into thinking muslim terrorist.
