If you can hold your listener, hold their attention, and you’re sure you know what you’re doing, and know that you’re communicating — you know, performance is communicating.  You’ve got to communicate. You’ve got a song you’re singing from your gut, you want that audience to feel it in their gut. And you’ve got to make them think that you’re one of them sitting out there with them, too.  They’ve got to be able to relate to what you’re doing.