She was glad that Tinker Bell did not seem offended or upset that Christine wasn't feeling confident enough to keep this up for a very long time. Surely it was understandable that she would feel like that? It had to be. She had the feeling that this was not the first time Tinker Bell had helped someone fly so she must be used to that brief moment of feeling unsure. Of being a little scared. But then she moved closer and when her mouth started moving she focused again on her lips to try and understand what was being said.
It helped that she then went on to physically demonstrate it.
"That's how I stop?" she repeated, in her own words, just to make sure she got the message right. Not that she imagined she could get it wrong since she physically showed her the message. "I will keep that in my mind, thank you. I am not quite wishing to stop right now but I will wish to soon, I imagine."
Especially since she wanted to get Tinker Bell clothed.