“Often we start answers with vigour and then energy tails away. Great examples and arguments are lost to the viewer because a lack of energy signals:

“There is nothing of interest here”. We switch off.

This diminuendo can be because the speaker lacks confidence in what they’re saying. It’s sometimes because they’re already thinking about the next point rather than focussing on what they’re actually saying now – it can on occasions be accompanied by a slightly distracted look. So, don’t waste your content. Energise to your closing words and stay in the moment.”