Lol, well. Parvati might smile JUST A LITTLE at flirting, maybe blush, but so does not do casual sex at all because she feels like her scars make her freaky and she keeps them hidden. But it's sweet that he wants to make people smile!
Cool. Parvati loves chatting Divination, and isn't always awesome at being social otherwise, so she would appreciate having a comfort zone, so to speak. :)