Of course I would save LOTS of money to buy goods.
Practice all of the staple songs, though I know most of them by heart already.
Make a huge sign that says We
AYU - USA.
Of course take someone with me, probably my fiancee.
Wear something comfortable...I made the mistake of going all out when I went to a Dir en grey concert, and it was rough!
Hmmm...I think that's all I would do.