Carley smiles at Wayland's question, not about to give away her true profession and abilities, but knowing some kind of answer is expected.  She looks up towards her master with a slightly questioning look, as if to make sure it's alright to answer for herself, or if it's his preference to answer for his slaves.  Perhaps he has some cover story prepared for her, perhaps he would simply tell them what she really does, and protect her from any judgement they might cast.  But if it is up to her to explain, she has an answer ready as well...