At first, Viola attempts her typical tactic of hiding in plain sight. If you're silent and still for long enough, people tend to give up and leave. No such luck. Felicity speaks to her directly and asks a question that seems to require a response. "No, I don't think so," she answers lamely, pushing herself back up onto her elbows to glance around. Later, in the shower, when she replays this conversation in her head she will come up with a much better retort, but for now, that's all she's got.