Going to Geordie's concert (my first concert)

I've discovered Geordie Greep quite recently thanks to "Holy, Holy" and I absolutely fell in love with it (it reminded me a lot of Jamiroquai in a way, who is my current favourite artist). Then I listened to the album and I LOVED IT EVEN MORE!!! (P.s. I listened to all BM's albums too and I think I'll do it again soon). I bought the CD too and now I aim to get it signed at the concert. It may be impossible but idk, I've never been to a concert.

My question is directed to the people who have already been to his concert: do you have any tips? Any things/facts you want to share? Will I need ear plugs?