I'm not giving up on you, yet! Don't you give up either!
Look at the pic I posted of the four under the umbrella. I picked that picture, because it linked to the previous picture posted that also had an umbrella in it. That was my "tag." So, for the next person to "tag" my picture, they have to continue some theme in the picture I posted, but they can't use the same one I did! For example, you honed in on the umbrella, and posted a picture that had the same theme, but that was a repeat; you are supposed to "tag" a brand new theme from the picture that was previously posted, and use it for your new post.
So, to sum up... here's a new picture, I'll tag myself (technically not allowed, but this is for educational purposes):
Tag: Band all in black shirts
(I spotted in the previous picture posted that they all have black shirts on, so that is the theme I am carrying on to my post! See, the two pictures have to be connected by a theme, but a different one than from the previous post!)
I am therefore proposing a game of tag for Band Day. I think there's a lot to work with here. 
