Lisa had recognized the girl as a younger Gryffindor. The butch-ier looking quidditch player if she remembered correctly. Not that the Ravenclaw held that against the girl. Some people were unfortunately blessed with larger and less feminine jaws - it couldn't be helped. Though, she supposed the girl worked well with what she had. Decent figure, good hair... it worked. That aside, however, Demelza carried herself well enough to entice Lisa to asking the girl a random favour.
"Could you check my hair for owl droppings?" she said as she pointed to her head and turned her back to the Gryffindor for a better look. "Every time I come up here I get paranoid one of those things snuck me a present," she shared absently with a mild chuckle.