The lesson
Open a discovery deck with a talk-time split that promises the seller will mostly listen.
This Pitch Unfairly rebuild's cover says "You don't need this pen. Yet." with "20 MINUTES, MOSTLY YOU TALKING". The agenda, titled "For eighteen minutes, the pen stays in my pocket.", shows bars labeled YOU TALK three times, then I TALK. Later come five questions on an order ticket, then "Hand them a napkin before you hand them a pen."
Skip the pen and napkin props, which belong to the story. Keep the visible talk ratio and the numbered question list as the core of the deck.