Sylvia nodded then kept herself quiet. She was adept enough at the silent trek so neither Artyom, nor Yoru, had any worry about her giving away their position. That said, Sylvia was still listening for anything unusual, which, if Artyom was right, may actually appear in the form of a patrol or a supply run. For the moment, she didn't hear or see anything that gave her reason to be suspicious. Even still, she had her weapons ready if it became necessary.