His eyebrows shot up briefly when she named him friend, and his smile turned genuine. It was gratifying to know that she wanted him around, in whatever capacity. Even if it was just to satisfy her own curiosity and boredom.
"Well...." He swirled the wine in his cup and made a show of considering for a moment. "The districts near the docks are always busy, and there's one or two places there that a lady of quality such as yourself wouldn't raise much suspicion." If she were properly cloaked and hooded, of course. "Or we could try and go for a trip to the Flea Bottom, if you want to see some of the most interesting sights in King's Landing." It was clearly a question as well as a statement; his eye met hers over the rim of his cup. He wondered how she'd respond to the offer of a tour of the royal city's slum.