"Herbs?" Geralt didn't ask but he wondered if these would have any magical qualities but it didn't sound like the woman was a witch. He'd been wrong before and it would be wise of him not to make any assumptions but he also thought himself a good enough judge of character. Currently, he wasn't getting any of the normal creepy or vile feelings that usually came up. He'd been around enough nasty things, humans and creatures alike, to make a good enough judgment call.
Though he was curious which herbs she would be offering, he nodded his thanks. "I have a ho- a dog. Would these herbs be poisonous?" He had to ask. There had been an unfortunate incident or two on Kaer Morhen because someone wasn't careful. He didn't want to lose Roach so soon after receiving her.
Now Geralt's curiosity couldn't be held back any longer. He nodded toward her green skin, though hopefully not in a rude way. But it was Geralt so it was possible his tone was more blunt than he intended. "Curse? Or fey?"