Living up to her billing

MYSTERY GIRL. A group of about five girls from a local university gathered at a diner for lunch. As they sat down, they opened their bags to bring out pieces of paper, books, and whatnot, exchanging small talk. After a while, another girl joined them.

FREE LUNCH. Without a word, the girl opened all the lunch packs and helped herself to the food while the other girls were busy either talking to one another or on their cellphones. As soon as she seemingly had her fill, she left without bidding anybody goodbye.

BULLY.  A customer who was seated at a nearby table said the girl could be a bully in school and was just living up to her billing even outside of the school premises.