"Uh, what?" Richard said as she hugged him. "What, like impersonation?" He called after her as she walked off, "I don't do impressions, River!"

"I don't know what that was about," he said when she had gone, "If she sees something we don't she should just fucking say it. I don't need more cryptic hints in my life." 

~~~

Professor White was at his desk, John the Raven was standing on the desk, eating little bits of bacon off of White's breakfast plate. He looked up from his uneaten food and put his fork down. 
"Of course," he said by way of greeting, "You have a headache." It wasn't a question, he pointed to his own head, "Right about here. There's nothing I can do about it, should go away within the day." When she didn't immediately go away he looked back up at her, "Is there something else on your mind?"