Jesse wagged his tail at Zoe, happy to see her, happy that she'd stopped to talk instead of ignoring him and continuing on her run. She smelled of Zoe things behind the mask of the sweat that had begun. Things he'd seen her at, but now knew by scent as well. The Batsuit was one of them. He wouldn't have known that if he hadn't known what she did, but he did, so he knew the strange odor - tight to her flesh and like a darkness to his nose - was her being Batman.
He whined a bit when he saw the briefest glimpse of her stomach as she moved, a happy sound that probably should have been made in anticipation of steak or some other grand doggy treat.
Jesse was unsure if Zoe would recognize him as a dog. He didn't think so. Why would she ever think of him being one?
"ZOE!" The word came out as a harsh bark. When he tried to form the letters like he normally would, nothing happened. "ZOE! ZOE!"
Unsure of what else to do, he just wagged his tail some more.