Natasha didn't mind Steve wanting to have their meeting in the afternoon as it gave her ample time to try and refamiliarize herself with the bus. Having read everything she could, it was clear that despite not remembering it, she was definitely here before, and that bothered Natasha since she didn't like not knowing her whereabouts at all times.
Her exploring left her with more questions, although she had faith that Steve might anticipate some of those queries before she had a chance to ask them. He was always quite good at covering all the bases, which she appreciated as it made dealing with him on missions much easier. Which was how she was choosing to view this, as a mission of some sort.
Doing her best to try and keep an open mind, she made her way to where Steve was waiting. Automatically scanning the area to locate any exits or potential weak points, part of her was still suspicious. One minute she was facing her death, and the next she was on a strange bus traveling through space. To say she was amused to see the vodka next to Steve would be putting it lightly. "I'll be the judge of that," she smirked, taking a seat next to him.