Humility and a friendly demeanor is the quickest route to get the audience to agree to your point of view in decisive presentations.
Assuming neutral content, a presenter’s likability is critical to how well his/her message is received. And likability is ALWAYS a two way street.
For your audience to like you, you have to like them first, and show it as you interact before, during and after the presentation. I have seen the best of presentations suffer just because the presenter oozed superiority – totally unnecessary, isn’t it? The fact that you are the one standing and talking is proof enough that you are in a higher chair at that point.
Audience’s unconscious perception is critical in a decider presentation, shape it with your smile.