Step 1: Make sure you have turned on the Q&A feature in the Session Editor
See also: How to set up Audience Q&A
Step 2: Let your audiences know they may submit questions any time during the session
Your audiences will find a Q&A icon in the lower right hand corner of their screen.
What your audience will see:
Step 3: Check collected questions anytime during the session
Turn on the Show Q&A questions to display collected questions in the bottom section of your screen