To best prepare for your presentation, we recommend you to always test vote on your own presentation before using it in front of a live audience. This also lets you understand what your audience will experience as they interact with you during the presentation!
We have several articles that let you know more about the audience's experience depending on your presentation settings and your question types:
Entering the voting session
Voting on Multiple Choice, Image Choice or Quiz questions
Responding on Word Clouds or Open Ended questions
Voting on Scales, 2 by 2 Grid or 100 points questions
After the voting session
Presenter pace or Audience pace