Rose didn't have to keep the job. Her Christmas wish had given her the money she needed to stay home (or rather, in the TARDIS as was more often the case) if she wanted. And with balancing classes and Apocalyptic duties and her rather incredible romance, she probably should have left the shop. But it was only a couple of days a week and she genuinely enjoyed it. The items that came in were always so unique and special, each with their own stories. She loved meeting with the appraisers, with the former owners, and with the buyers who'd be creating their own stories with their purchases.
So when the brunette woman took interest in the Native American dance bustle, she perked up considerably. "Well, he was asking $250," she explained, speaking of the little old man who owned the shop. "But it's been here for a while. I got him to come down on the price a little, so right now? $220." Typical Rose couldn't just give the price. Nope. She had to give at least twenty facts on the item, try to get the woman talking. "Isn't it incredible? I always wanted to head out west."
West of America, obviously. Her accent likely made it clear that this wasn't her typical territory.