Damon usually wouldn't engage with someone, but honestly the other guy gave off similar vibes to Damon, and the vampire hit a type of boredom he hadn't expected, so Kaz got a comment about his cane.
"I assumed so." The can reminded him of something he'd see in his boyhood days, not modern days. When the bartender passed his drink to Damon, the vampire wondered if the guy was old enough to drink or possessed a good ID. Not that Damon cared. "It's not the kind of craftsmanship you'd find in Target."