The sound of footsteps draws her attention, and for the first time today Shirley manages to notice someone before they've gotten too close. She tenses, but only for a moment - so far, everyone else here has been safe enough, and he's probably no different. So she doesn't move or flinch away when he kneels next to her, even though it takes a bit of an effort, and she even manages a half-decent smile (only partly rushed, and mostly sincere at that) as she responds to him.

"Mm. I'm still trying to wrap my head around it..."