"Oh, nah," Rosario said quickly, holding up her palms (well, one palm and a library book) to stay him. Yeah, it was her usual spot – they were the most comfortable chairs for laying back in, and this corner was quieter than the street-side – but on the roof things tended to operate on the law of first come, first served. You couldn't leave stuff out here and expect people not to use them. "Nah, you good, the chairs are for everyone. I just didn't expect anyone else to be up here round now. But hey, um, welcome."