The audience plays an important part also. If they just stare
blankly at the speaker, the speaker will have low morale too.
So if your presentation allows, ask a few short short yes/no
questions. So at least they'll have a response. Do do something
wrong purposely.
"have u heard of micheal jordan? He's the top in soccer, scored
many many goals won many matches..."
Then act blur and say something like "Oh, he not in soccer at??
hehe"
You get the idea.
Goodluck for your future presentations. 
