Jenny can feel the man's guard go up a bit when she is introduced to him, not that she can blame him. Hard enough to meet someone new, let alone someone from a different planet and a different time. Even if it is a part of his very unique job description.
She grins, "Hello. And yeah, my landing was a bit rough. I don't normally walk around with a bloodied face. Then again, I don't normally find myself fall through rifts in time and space either." She says the last part with a knowing glance at the man, as if to say 'it's all right, I know about Cardiff's secret.'