Use object builds and slide transitions judiciously. Object builds (also called animations), such as bullet points, should not be animated on every slide. Some animation is a good thing, but stick to the most subtle and professional (similar to what you might see on the evening TV news broadcast). A simple Wipe Left-to-Right (from the Animations menu) is good for a bullet point, but a Move or Fly, for example, is too tedious and slow (and yet, is used in many presentations today). Listeners will get bored quickly if they are asked to endure slide after slide of animation. For transitions between slides, use no more than two or three types of transition effects and do not place transition effects between all slides.