According to a Gallup poll, these are the things that people find most annoying about other people’s speaking habits. Commit them to memory, so you won’t make these mistakes when it’s your turn at the podium.

Cursing 84%
Mumbling, talking too softly 80%
Talking too loudly 73%
Monotonous or boring voice 73%
Filler words like “um,” “you know” and “uh” 69%
A nasal whine 67%
Talking too fast 66%
Poor grammar, mispronouncing words 63%
A high-pitched voice 61%