Tinsley isn't even aware that he was followed. Between that and the mysterious whatever he'd just seen taking up his attention, Misty's words startle him, and he jumps a bit when she speaks.
"Jeez! Need to put a bell on you or something. In any case..."He points out the window.
"I have a distinct feeling that it has something to do with whatever's outside there. Anybody have the Campus Security number?"