No, it was an odor. The unexpected, unlikely-yet-unmistakable smell of Reese. You know how there are people in your life that you constantly meet but never really know? They are the tangential members of your life. They are always around when you least expect them, always passing you in the hallway, thinking exactly the same thing you are: who is that guy and why is he everywhere? But neither of you ever stop to ask.
Well, Reese was that guy to the entire town. Somehow he is always at the fringe of everyone's life but not a single person actually knows a thing about him, save one. Inexplicably, impossibly, he carried with him a smell mixed from old, dry peanut butter and stale, dusty chocolate and wore the very same outfit sporting a vintage Reese's Peanut Butter Cup Tee. Thus the name.
The realization crept through Vincent as he figured out what the smell was. Vincent looked around him and spotted Reese making his slow way through the carpark. On their current paths, Reese would cross the street just before Vincent got there and Reese will, once again, run a tangent on a point of Vincent's life.
Vincent felt again the conflict between just letting Reese go his own way and running after him.