learn to whistle loudly with my fingers

My Aunt Gwen had begun to show me how, but the saddest thing about it is that somehow i never managed to catch onto it. So now, one thing I want to do in life (other then catch on to it) is to learn how to do it, and then do it better (louder) then her.

I’ve always wanted to do this, not for any particular reason, but at concerts/sporting events it would be nice to cheer like this and be heard!