Offer your assistance, you altruistic gentleman you

"What have you got down in the archives?"

"Oh, just some reference stuff that's not for check out." She purses her lips in distaste, the only negative expression you ever see her give. "Of course, that means that they can't POSSIBLY do their research downstairs."

"You want some help? I understand that the elevator doesn't always work very well, and lugging that stuff down two flights of stairs must be brutal on your back." She looks over at you with her head tilted to the side and you shrug. "Getting stuck in the elevator probably wouldn't be much fun either."