Two men in white shirts with suspenders , blue neckties , and gray hats , stand to the side as people walk by .
It is almost certain that the men are observing pedestrians as they walk down the street .
Chances are about even that the men are observing pedestrians as they walk down the street .
It is almost certain that the men are observing pedestrians as they walk down the street .
The men are observing pedestrians as they walk down the street .