"I honestly haven't been to a Wal-Mart before," she admitted. "They didn't have big stores like that where I am from. But I have heard horror stories of the store, and I have been avoiding it since my arrival here." Though, to be fair, she hadn't been in town for even a week yet. Give her time, she'll go to Wal-Mart.
She smiled a bit when Leia agreed to company while buying clothes. Because Clara wasn't too particularly fond of clothes shopping on her own, and having company would be nice. "I will be glad to help however you would like." She was friendly that way. And Leia seemed like a nice person, Clara would like to get to know her better.
"There are travel portals? I didn't know that." Well, at least there was that. She could travel somewhere at least. "I was accustomed to not traveling, for a while. Then I met the Doctor and all that changed."