Walk the stage. You don’t have to live in the boardroom for a week before the presentation, but do what stage actors do. We walk the stage before performances so you know how many steps it is from chair to coffee table. If you walk the boardroom, you’ll know how to avoid the LCD light and which chair is most likely to trip you.
Learn your lines. What’s your message? What do you want people to walk away with from your meeting or presentation? Make sure it’s brief and “sticky”.