Derren brown embedded commands for dating
In this episode, he places the video game in a pub to lure a supposedly unsuspecting patron into playing the game.
Since you're saying they "shouldn't", it's not like you're trying to get them to do anything, aren't you?
Writing and speaking Used skilfully in speech and in writing it is quite powerful stuff. You might find there exactly what you are looking for.
As you consider the benefits of Out of print Tricks of the Mind is Brown's first book intended for the general public. But, in his patter were disguised embedded commands: