Lissa actually fully stopped walking and looked directly at Tris as her eyes got a little bit wider. She had no idea how to respond to that at first but she quickly recovered blinking and looking back towards the ground so she could start walking and making sure she didn't trip over anything.
"What year is it?" Lissa asked figuring it was the most logical question that she could as her. She didn't think that Tris would try and hurt her, but Lissa was getting a good feeling that things were really different from wherever she was from.
"Yeah, Chicago is in Illinois. I live in Pennsylvania. Both are in the United States...."