Your audience thinks you are going to be a terrible speaker- how do i know that?
Think about when you go to a large meeting, conference, or an event where you are supposed to speak and notice how fast the front row fills up. If you are like most speakers, the front row is likely to remain empty and most people will simply choose to cluster either in the back of the room or in the middle seats. If the front seats do eventually fill up, it is because they are the only seats left in the room. The same cannot be said for a Beyonce concert where the front seats fill up first. That is because they know they will get a show as good as they want.
When it comes to your public speaking, your colleagues or audience may prefer the back seat because they assume that you might be boring and so they can perform other tasks without being in the spotlight as you snooze your audience.
But why is this? That is because most speakers in the world are boring. That is good news for you and me! It means that if you are simply not boring, people will be interested. The expectations for performers are higher while those for general speakers are lower. If you give them even one interesting idea in an interactive manner which they can implement in their lives, then you are automatically better than most speakers in the world.