During the 'public talks' those interminable exercises in boredom i used to do those pelvic exercises where you retract ... well you know. I could get up to 50 retractions, rest a while, do it all again. It was most useful and for those who have never sat through a PT.. read on.
Public talks: for the speaker to keep to the allocated time even if it means expanding (stretching) his information to fill in the time. Of course to stretch something usually means making it thinner. The speaker will stand behind the lecturn and show no animation and will always wear a suite whether it is hot or not. He may use a some prepared hi-lights on a 'whyte'- board this device being officially sanctioned where as 'power-point' is not.
He will remain ever 'he' as women are not permitted to give talks.