This, you are your worst own enemy. Also, it took me so long to realise no one gives a fuck what you're talking about, everyone is so absorbed in their own shit going on. I'm pretty comfortable public speaking now, as I realised that most people are doing what I'm doing when watching and listening. They are thinking about all the shitty jobs they've forgotten to do, or dreading that's it's Tuesday and that's night they have to go home and out the kids to bed as their partners out, or oh shit I haven't done that report for what's her name up in finance, she's going to be so pissed etc