Presenters will need to use certain keys to display their interactions on the big screen. By clicking on the same key again it will reverse the action.
Note that keys vary slightly depending on your browser (notably Safari).
To gain more interaction, a quiz is a good form of engagement, as well as another way to better understand your audience
Glisser’s Salesforce integration allows you to export attendee interaction data to Salesforce.
The lottery slide allows the presenter to select and display random users as the winner.