It seems that in spite of everything I know, and generally being a witty chap in most conversation, I still find that my brain and my tongue almost instantaneously disconnect from each other and my body language completely crumples in spite of my best efforts to reign myself in. It's like the real me finds himself suddenly wrapped in chains, unable to move or exert himself.

Any brain hacks I can do to circumvent these fantastically irritating unconscious reactions?