Billie follows back a cautious distance from the group after her scare. Although she pauses a second to admire the glowing fountain, she doesn't dither behind. She chooses to give the group a wide berth, initially staying near the entrance to the room.
As the others talk, however, Billie creeps forwards, unable to resist a puzzle. She cocks her head for a minute, thinking, before walking over directly to the statue. Leaning towards the statue's ear, she waits until somebody speaks before whispering "I order you to open."