Yes, if you associate the other person subconsciously to represent your subconscious, but really how would this be practical? You would probably have to do this a few times with your friend, and to be honest there are better ways to implant something to your subconscious. “Brute forcing” it as I call it, is just making your mind bend to a habit you want by just doing it over and over again on a surface level.

There are deeper ways that will have much more effect. I talk about subconscious reprogramming here:
https://www.dreamviews.com/attaining...-lucidity.html