Luciana L. answered 11/27/19
Friendly Tutor for English and Public Speaking
The most common mistake I see in business presentations is the lack of engaging structure. Your presentation should be a build up to a closing that starts with a question or need and ends with an answer or solution.
Another mistake commonly seen is a speaker that is self centered and overtly worried about "performing" his or her presentation. Naturally, your audience needs to "like" you and your personality. But that should not take away from the overall goal of your message. A balance between your speaking skills and clarity of your message is what one needs to master for a successful business presentation.