maybe you could talk about the magic, and the worry about taking it out. Might help you to understand it better (will surely help T to understand it better).
Even if you don't touch on those things, you will do fine - whatever I plan before I go, I
never get it all out, and we always end up in areas I hadn't expected to go into (sort of good news/bad news I guess). If you are like me, the scared feeling will go away a lot as soon as you see T's face.
BTW your hair looks cute like that!