instead of giving you those "ewww you are weird" look we get so much in the western world.
No need to worry about that, its a Anime Con, it'll be a collection of weirdos, noone there can afford to judge others.
Actually last year in the May'n Concert in Anime Expo, the dude sitting behind us was demanding us to sit down, and when everybody else stood up he was like.. I DONT GET THOSE PEOPLE!
and i also remember from the MM con in AX09, people were complaining how the wotagei ruined the concert "experience" Most people go to anime cons for anime, not for the concert, and if they do end up in the concert hall, its very likely they are going to act ignorant about it. I think some people even went as far as saying "this is america! dont bring that japanese stuff here!" which is totally unnecessary, considering they are a japanese group.
I guess.... just dont tell people what to do and what not to do in a concert, but with that being said, I do enjoy the wotageis alot more than the Fuuuuuuus