A woman in a colorful dress drives a motorized chair past a corner on a city sidewalk , while a man in a long white t-shirt walks towards the road .
There is a better than even chance that the woman smiles at the man in the t-shirt .
There is a better than even chance that the woman smiles at the man in the t-shirt .
There is almost no chance that the woman smiles at the man in the t-shirt .
The woman smiles at the man in the t-shirt .