You made it to Japan! Make sure you check out Akihabara. It's a gamer/anime otaku's paradise. Also the girls wearing maid outfits at the maid cafes (they act all cute too) is an absolute must see. Try not to fall too hard in love with them.
This year was the 7th time I've gone to Japan actually, I visit Japan every year helping out at the World Cosplay Summit.
And I've seen a lot of Japan already actually, including Okinawa. :)
As for falling in love, that is rather unlikely as I'm not really into Asian women nor very charmed by overly "moe" behaviour.
Besides, I'm already privileged with an awesome girlfriend who also likes anime.