"Why hello there," Lucifer all but purred as he approached Katherine, having been eyeing her for some time. He didn't mind vampires, as a general rule, but murder was a definite no-no and while she hadn't done anything yet, it felt prudent to let any possible predator know there was someone with bigger teeth than even them - him. "I've been watching you. You're really very discrete, aren't you?"
Nothing says good vibes like a guy approaching with the opener 'ive been watching you. Already Katherine's brow is raised and she half done with this convo before it's really started.
But besides having a shitty opener he hasn't done anything that warrants writing him off completely..... yet.
Instead she takes a drink, letting him wait a moment, possibly think over how he started this, and then replied.
"A lot more discrete than you if you're trying to be a stalker. "
"You're not supposed to inform the girl you're stalking that you're watching her."
Just some helpful pointers to get him on his A game. She's nice like that.
"Can I assist you with something stalker? Me being discrete probably means I wasn't hoping for a conversation if that helps."
If you can't tell, she's had a rough day, don't take it personally. She might lighten up. Maybe.