Zoom Webinar: Pop-ups to ensure audience participation

Hi, we are hosting a Zoom Webinar soon, and we are offering an incentive for participants who stay for the whole webinar. I'd love to implement "checkpoints" spaced out during the webinar where participants have to click a button on a pop-up to ensure they're still engaged. The pop-up would saying something like "Are you still here?" with options "Yes" or "No."