If he knew she was doing that, he'd find it cute and sweet. A bit stupid, but still cute and sweet for her trying. He'd probably only accept it from Diana.

"Probably has to do with how vampires work, where I'm from." Spike said. Pausing a moment, listening and tuning into his senses, then deliberately turning a different way than they'd been going. He knew Diana would want to avoid potential trouble.

"I've told you about how that is before, yeah?"