"She's very lively, she's got a great sense of humor," Rosser told journalists at the hospital.
"She's not naive at all about what happened to her and the situation she's looking forward to in terms of being a high-profile person, and potentially a high-profile target. She's not naive to any of that, but she remains incredibly determined, incredibly cheerful and incredibly determined to speak for her cause."
That cause has turned Malala into a symbol for a girl's right to an education.
