For presenting, you'd write a speech to present the nominees, receive a message with the winner from K-Comm (usually me), and then announce the winner. You can see some previous ceremony transcripts here and here , to see what some of the other presenters have done.

"You need me. You wouldn't be much of a hero without a villain. And you do love being the hero, don't you. The cheering children, the swooning women, you love it so much, it's made you my most reliable accomplice." -- Lex Luthor to Superman, Question Authority, Justice League Unlimited