In any case, there should be a flipchart and pens available, and you should be capable of continuing with these materials at all times. After speaking for a long time the speaker miskeyed on his computer, and all he was able to do was restart his computer presentation from the beginning. It was really interesting to see all the animations, spoken sentences, time sequences of his charts and videos a second time before he could continue with his presentation. Whether you use media or not, you will always have more attentive listeners if you try to speak with them, seeking out a target person and speaking directly to him or her, and changing but speaking directly to the target with each change of thought. Also use the dynamics of your voice.
Nothing is more boring and soporific than a monotonous drone.
If you want to overly emphasise something, speaking very quietly can be very useful. Then if you want to be absolutely certain that all listeners are focused on you, you can interrupt in the middle of You'll see how they pay attention. KISS - keep it simple stupid One of the most difficult tasks is to represent complicated relationships simply. It is often quite easy to find a complicated solution. The real challenge is then to simplify the solution.