There's a little bit in my (forthcoming) book about how, when you're presenting, it's good if you can be you, but a bit more so. If you can dial your yourselfness up a bit.
I quote Ella quoting Dolly Parsons: "Find out who are you and do it on purpose.
There's something related in this programme - about the power of alter egos. That's going further than I meant, but I like the bit about Beyonce constructing Sasha Fierce as a person to be. And then realising she didn't need that any more.