Standing on the corner with a laptop in front from the beginning to the end of the presentation will not make a great presentation in front of the listener. You are not robots who can speak, you are a speaker who is considered great by your audience. Make them amazed!
Negative effect is the audience would feel bored and fed up with you. The solution is you need to check the location of the stage before the show started and adjust your presentation how you walk and greet your audience will be.
Presentation mistakes 2: Failed to Attract Attention
Usually the audience will only remember that you gave at the opening presentation and on the cover of your presentation. So you need to draw attention to the opening and closing your presentation, but if this fails you do, then the purpose of your presentation will not be achieved.
Negative effect is the presentation you will be in vain. The solution is that you must give your audience a reason to, as to why they should pay attention to your presentation.