Though Donna was quite surprised, she didn't quite mind being hugged like this. For a moment she thought it was just a Doctor thing. They'd talked, and he knew about her so there was hugs. Then he said those little magic words and she blinked. "Wha? Oh.. Oh. Well that didn't take him long at all to tell everyone." She shouldn't have been surprised. But she was smiling. "It's really lovely to meet you too."