She'll be already in what appears to be a normal seat, greet you by name and a smile when you take your seat. the objective is to keep you in the dark about what she is as much as possible. If it's successful, you won't know until the session is complete and you have left the simulator. Only those behind you will know. If none of the subject captains twigged that something isn't quite right here then she's ready.
Oh FFS. Who thinks up this ****? Is that you BNEA320?