Closing the door behind him, Hermione's smile grew slightly. She probably could have guessed that he would ask for firewhiskey. "As a matter of fact I do have firewhiskey," she told him. "Well, provided I can remember where it is."
Biting her bottom lip, she tried to recall where exactly she had stored the bottle she had been given. With no intent to drink it herself, she had only kept it with Ron and Harry in mind. "Oh, I know," she said after a moment, more to herself than Oliver. Heading into the kitchen, she pulled a chair across in order to stand on it and reach into one of the top cupboards, successfully finding the bottle she was after. She probably could have retrieved it with her wand far more easily, but Hermione was usually in the habit of doing things the Muggle way when she was at home.
"I'm not exactly all that busy apart from homework and the usual," she told him, pouring a decent amount of firewhiskey into a glass and then returning to the living room. "It's nice to have a visitor, actually," she admitted, handing it to Oliver. "And don't be silly, of course you're welcome. I'm pleased to know that there are people interested in the D.A. still."