Well I may not be very experienced at this or informed for that matter, but I think that the method used for telepathy can be modified to suit that purpose. For example if you send a clear message to a persons mind and put it where he isn't consciously aware of it it's likely that he will act upon that message. In other words place a subliminal message in his mind. This is just an idea though, I've never tried it (simply haven't had the need to) but it couldn't hurt... well... not you anyway. I'd love to hear how it went if you decide to try this method.
Good luck with your task!
