Bondage Party?

There is a Bondage Ball coming to my town at a concert/dance venue that I've been too before. I'm a little nervous about going, but I'm trying to be open minded because my boyfriend is in to BDSM. BDSM at home is okay. It's the public part that has me nervous, especially since I'm a newbie. The event is a few days before both of our birthdays, and I thought I'd suprise him with it. I know that once I put it out there, there's no going back. Well, it kinda is. He we won't do anything I'm uncomfortable with.

Has anyone here been to a bondage party? What can I expect? Will I regret it? Should I even go if it's gonna make me nervous?

Oh, also, I work as an admin in higher education in a college town (where the event is), so I'm thinking that if I do go, I'll need a really good wig and mask.