To Overcome Your Fear of Public Speaking, Stop Thinking About Yourself - Harvard Business Review   

Even the most confident speakers find ways to distance themselves from their audience. It’s how our brains are programmed, so how can we overcome it? Human generosity. The key to calming the amygdala and disarming our panic button is to turn the focus away from ourselves — away from whether we will mess up or whether the audience will like us — and toward helping the audience. Showing kindness and generosity to others has been shown to activate the vagus nerve, which has the power to calm the fight-or-flight response. When we are kind to others, we tend to feel calmer and less stressed. The same principle applies in speaking. When we approach speaking with a spirit of generosity, we counteract the sensation of being under attack and we feel less nervous.Most of us — even those at the top — struggle with public-speaking anxiety. When I ask my clients what makes them nervous, invariably they respond with the same answers:And it follows that when they get up to speak, nearly all of them initially avoid making eye contact with members of the audience. Therein lies the problem: While avoiding direct eye contact may seem like an effective strategy for coping with speaking anxiety, it actually makes you even more nervous.Continued here