He sensed the movement before he heard it, and he focused his attention on the door. When he saw someone there, he jerked his chin in a nod before he rolled the bike a little closer. He hadn't thought that maybe the place would be closed, or he was intruding on after-hours work, but ... well he was here, now.
"Evening," he called almost conversationally before he nodded toward his own bike. "You guys open?" He assumed -- perhaps incorrectly -- that the kid worked there. Maybe the son of the owner or something like that. He didn't know. Didn't really care. "Or have some tools I can borrow?" He figured they'd rather do it so they could charge him, but every once in a while he came across a decent human being.
He did hear someone else there, who he assumed to be the owner, but he was content for now to wait right where he was until he'd negotiated.