The barries of the presentation
Not having the preparation enough
Spending the amount of time planning own ideas depends on searching Google, your knowledge,...
Ignoring your audience
Focusing on the needs of your audience. Also, when you start your presentation, you should tell your audience what to expect. Let them know what you will cover first, whether and when you will stop for a break, if you will be taking questions, and so on...
Speaking not fluently
*Speak beforehand in front of a mirror * Use a recorder *Talk about your presentation with a friend
Lacks of dynamism
* Move around the stage during your presentation * Use gestures and body languages flexibly
No eye- contact
Try to make eye- contact with your audience. If you don't look at them, you will be told to lie.
Long and tangled content
Make the content shorty and sweet by telling a story, using examples, dividing your presentation clearly, using visuals,..