He did not like spending time in his 'office', but he needed to have somewhere to put everything. Plus, he could always count on it raining most of the year in Britain. Even though the animals were on the grounds—and he had to care for them—his office apparently had to be indoors, something he planned to talk to McGonagall about. I imagine it to be more of a fuss than it's worth, he thought.
"It's about time you came to visit me at Hogwarts," he said, not bothering to look up from his reference text right away. He knew that voice, and it had been a while since he really saw Hestia. Order meetings hardly counted, but they were a part of his social life.
Within a few seconds, Charlie closed the book and stood. "All right," he nodded, adjusting his shirt a bit. Wearing formal robes did not fit the image of someone taking care of animals, so he rarely wore them. Charlie wholeheartedly preferred jeans and long-sleeved t-shirts or thermals—layering them so he stayed warm in cold weather but could still manage to move around.
"Where are we going?" he asked. "And how have you been?"