Astrid stops and turns, expecting to see her own Olivia and being faced with... well, the other Olivia. Not that she particularly minds - the other side's Olivia had seemed kind and competent when Astrid met her.

"Hello, Agent Dunham," she says slowly. "I was not aware you were in the city."

This is Astrid-speak for 'Holy shit, you're here too? When did you get here? Does Fauxliv know you're here?' Not that she's expecting Olivia to be able to read her that well.