Buffy probably wouldn't want to have a serious discussion out in public if it were her asking for an ear. Sure, she didn't know for sure if it would be serious, but there was more than a slight chance it would be. "Sure. Lead the way." She stayed in step with Wanda. once they started moving again.
Even though it was easy to get lost in the crowd in a place like this, Buffy knew the atmosphere was just wrong for anything personal and frankly, Buffy was glad Wanda wanted to go to her ship. It was a safer place in her opinion for many reasons, not just from actual threats but she figured it could be comforting presence for Wanda. "I'm going to assume this isn't about the bogo shoe sale I saw a block away."