Thanks to the Games, Peeta is used to attracting attention. He's used to stares and pointing and whispers, so the actions of the people they pass don't faze him. If anything, he finds them comforting - if there are spectators, it means they aren't running from anyone (anything). It means that, for the moment at least, whatever it was that was in the park isn't nearby. So while he doesn't make eye contact with anyone they pass, he keeps individuals in his peripheral vision.

After what feels like hours, they finally make it to the subway entrance. When Daine pauses there, Peeta does, too. For a moment, he isn't sure why she stops. Then he remembers the stairs.

"Do you - do you need me to help you?" he quietly asks. He isn't sure if she wants his assistance, or if she even needs it. There's every chance that she can manage the stairs without any problems.