Earl does this pacing up and down, and it means he wants to come out.
I would just open the door of the cage and let her come out on her own, if she hasn't been out for a while with her previous owners she might be a bit clumsy outside of the cage. Also when she is out don't go up to her straight away just sit in the same room and let her get used to being out and being with you. Then after about half and hour(I don't advise you to have less than this) try and get her on your hand/finger.
Good Luck!