When I did presentations I focused on the back of the room. The people think you’re looking at them but you’re really not. Another trick I did was memorize what I was going to say. It helped with my stutter, sort like a song you know the words to. And of course my old fall-back is to use synonyms (words I know I won’t stutter on) for words I know I’ll stutter on. Go kick ass! You’re gonna be awesome!