butterandsugarcrepe

Subconsciously or not, the more you vary your voice, the more people are going to listen to it. Your brain is wired to notice change. When it's repetitive, your brain goes on automatic mode and doesn't pay attention anymore. But as soon as you hear a shift in the voice, your brain will be like "hey, did he start something new? Better listen to know if there's something important". It's like when you see a repetitive pattern, if there's a slight change in it, that's what you'll notice.

So from there, learn to vary your voice. In height, in volume, in rhythm and in "color". And you can also combine those settings. The more you vary it, the more they'll listen.

I'm a teacher, and sometimes I feel like students are like dinosaurs, they won't notice you if you're static, but they'll see if there's movement.

Thanks!

Exactly! Embrace those tangents. Use them! Kids love them and actually remember them very well. So throw in some notion you want them to learn!

E-nun-ci-a-tion.

If it is a lecture, prepare it beforehand and speak with a good enunciation. A thick accent is not a problem as long as you enunciate.

Take your time, foreign speakers sometime tend to speak fastly (native speakers experiencing stress too!), so try to fight that.

If there are interactions with the audience, don't stop when you don't find the words. Instead try to find another way of saying what you wanted but with another wording.