Help with Burger Time trick

[Happy Harry]

I'm completely drawing a blank. I have the deck of special cards, and I thought I was familiar with the routine, but I can't remember how it goes! I can do the patter once i remember the sequence. Anyone know the sequence? You deal twelve cards off the top, and then I don't know what's next! even if there's video online showing the routine (but not the secret), that's ok (but not youtube, that's blocked here at work). Thanks.