I don’t know why everyone was surprised that Donald Trump showed North Korea’s Kim Jong Un a ‘propaganda’ video after their meeting earlier this month. Trump was just dusting off the sales technique that has worked so well for him in the past as a real estate developer.

Ask anyone that has been to a sales presentation for a vacation timeshare or condo. They are slicker than snot on a doorknob, using photos and videos to show you how sweet life would be if you would just sign up. If they weren’t that slick, people wouldn’t bite. Of course, once they sign up, many people find that the deal isn’t as sweet as they thought it would be.

Trump has been successful with slick sales presentations for years. He built his real estate career on it. And the sales technique worked over and over again. Wall Street bankers finally became immune to it, but that was only after being burned by Trump several times.

Trump is simply reverting to the persuasive tool he knows best. He is figuring that Kim is a greenhorn and will be wowed enough by the sales presentation to buy into Trump’s vision.

Maybe it will work and Kim will hire the Trump company to manage his new resorts and hotels. Or maybe Kim will see right through the slickness and play Trump right back. My bet is on the latter.