If you do not have slides to support that testimony, leave the screen blank. Do not reveal your next slide or people will naturally read it, rather than listen to the testimony of your expert. On the other hand, if your witness makes a weak appearance, you may choose to allow the distraction, diverting attention away from the speaker. A persuasive presentation delivers a consistent message in all of its aspects. Appearances are important.
Clumsy appearance delivers a clumsy message.
A well-tailored presentation is authoritative, and credible. A presentation enhanced by persuasive demonstrative offers the competitive edge necessary to prevail in legal proceedings. N.Y. He is co-author of PowerPoint for Litigators , published by the National Institute for Trial Advocacy.