Robin really hadn't been expecting anything specific, but for someone that had just been over thinking and contemplating on whether or not she should remain in the prison or go back out to look for her friends, a gift in general made a small part of her freak out. Because what if that meant something else, that their casual hooking up was something else, and she wasn't sure if she was ready for that conversation. As much as she liked the nearness of him, as much as she enjoyed his touch against her back, she knew she was not ready for a conversation to define whatever it was that they were doing.
The hex bag intrigued her, though, and she smirked at the quip about something out of silver for later. "A good girl?" Robin teased. "Oh, Winchester. I thought I showed you I wasn't exactly a good girl." With a wriggle of her eyebrows, she secured the hex bag as she balanced the cigarette in her lips and put the bag in the pocket of her jacket.
As he spoke about demons, she listened closely and finished her cigarette. Stubbing it out with the snow and stepping on it with the tip of her boot, she nodded as if to say she understood. Robin had seen his tattoo already, knew exactly the spot he was pointing at, and unconsciously her now free hand moved to cover it as well.
"Oh, right. Yeah, I'll keep the hex bag." Looking up at him, she had to refrain from asking for what felt like the thousandth if he was okay. It was a stupid and probably pointless question, and she sighed under her breath. "Once Sam is better...can you teach me more about all this? More than what you were already telling me - I want... I don't know. I'd like to know more."