Just like the 'Pickle' or 'Stop And See', the desired result is to get the defense to make a throw on the runner at first.
My most successful tactic has been to employ the ignorance of the umpire to get the out of base line call.
I call time, causing the runner to return to the base. I have a conference at the mound with all the infielders and have the third baseman hide the ball in his glove. If the umpire rules that the play is legal, my defense is set.
Once play resumes, the runner on first heads to the same position and the pitcher runs towards him. Seeing this the runner at third usually breaks or leads allowing the third baseman to apply the tag.
Sometimes the best defense for a trick play is another trick play.