Wake her up

You sit down on the bed next to her and carefully touch her shoulder. Her eyes flutter, then she jerks awake, looks at you with slight fear in her expression. "It's okay", you immediately say to avoid any misunderstandings. "Just checking in on you."
She tilts her head, her eyes still wide open. "You."
"Yes", you say with a grin. "It's me."
River opens her mouth slightly, then closes it again. She looks at you for another few seconds. "I was dreaming of you."
"Only good things I hope?", you ask, trying to start a light conversation. But she still looks rather scared. "Are you the ancient mariner?"
"What?", you ask dumbfounded.
River apparently sees no need to elaborate and just gives you a haunting look. "No... you're not."
"Uh. Okay?"
She seems less scared, but more thoughful from that point, and you talk a bit about things that make a little more sense. Apart from that, nothing much happens that day, and eventually the others return and the ship flies into the black once again.