This was an event and situation that Hayley had no right being into, regardless if Elijah thought she was family and as the two sibling spoke she started to the stairs, only to stop when she saw Klaus. She instantly moved back to the side by one of the coffins, something was poking her in the calf, but she'll see to that later.
In her mind this event seem to escalate rather quickly with Klaus coming to her. Even if he was psychopath, Hayley never back down from him, which is how she got the nickname wolf girl to start with. "How can I give her a tour when she's lived her before? Plus this is my first time down here." Might be her last minus investigating whatever was poking her, why would she want to come to a room full of coffins?
Her eyes met his, her lips set into place, she wasn't sure what he was about to do, but Hayley didn't want to be a part of it, she knew that much. "If you'll excuse me, I don't think the dirt and dust is good for me here," she sidestep Klaus and went to move pass him.