Sudden movements...perhaps, but Sarai isn't making them at anyone in particular. She's inspecting the very odd device on her wrist, and making sure that she has this ticket that the train seems to require. She'd like to go through the bag on her back, but some instinct tells her that she probably hasn't got time for that right now.

That same instinct whispers of eyes on her, and so she does catch the child's eye. Her brows lift and she offers an entirely normal smile--despite the clawed nails and all those horns, she hasn't got a single fang to her name. She waves, tail twitching slightly.

"Hello! You're not lost, are you?" She does recognize the look on the girl's face--entirely too used to it back home, alas. Sarai expects she'll have to give the 'no, I am not a voidsent' speech any day now...