Many of my students are not fans of oral presentations, but I like the skill that is learned. So to help me when I was grading my students' final projects (which included the presentation), I went hunting on the Internet for rubrics. Here, here and here are two excellent ones. What is left off of everyone I have founds is "planned interaction." As I tell the kids any good public speaker has a joke, compliment or even question for their audience and that is always part of my rubric. For many of my students that ends up being a quiz at the end, often complete w. candy rewards.