She entered the store as the previous customers walked out. You'd seen her before. She came in regularly, entering just a little before closing time. She seemed fascinated by the old books on magic you displayed. She'd look through them with great interest, pausing here and there to read a page before she'd turn to the novel section and found a novel to buy. It had been so every friday without fault since you'd taken over the store. 

The young woman nodded to you and walked straight towards the magic display and started leafing through one of the spellbooks. She didn't seem to find what she was looking for, as she finished the book an started on another book, one that was about potions. At several pages she stopped to consider the contents.