"Nothing I can't catch up on," she assured him. She wouldn't mind taking a little walk, either, and she was catching on that shopping for them fell under the unspoken list of assigned duties. "Does ... is there any preference? What sort of things does he like? How ... how old is he?" That would at least give her an idea of what sort of things to aim for.
It made her wonder, too, what Harry had liked. Or would have liked. What sort of toys would she and James have been buying their son? Granted, the wizarding world had a whole different set of toys, and she wondered what would happen if she charmed whatever she bought to do something unique.
Maybe if it was possible, she'd do that. Color change charms were simple enough, and the idea of them trying to figure out how the toy was doing something unusual amused her.
Moving back toward the desk, she waited for any follow-up instructions on what sort of gift she was purchasing. Perhaps she should keep engaging. Perhaps she should have said no, pointed out that Don had legs and could walk there himself, but ... maybe whatever was going on was mutual in the sense that neither of them seemed willing to either confront it or let it go.