Implant your consciousness into theirs and then start implanting thoughts, desires, and so forth. The mind thinks with images. I sometimes do this to my cat if he's out late at night and I am going to bed because I need him to come in so he won't freeze to death. I put my consciousness into his and then I try to throw in images and feelings of "Home" "Food" "Human family (my mother and I)" and so forth in there, influencing his pathways of desire. Like playing the Sims sort of. Of course I use images and feelings from his perspective to be implanted and not words not only because he's a cat but because it is more effective than putting words as words can be symbolic and mean many things whereas a desire is a desire. I mean, he's a cat too so he's pretty easy to influence. The most I can do with a person when my energies are at a medium level is make them look different directions and so forth, rather simple things aside from complex commands. Maybe you could try to insert a hallucination that would make them curious enough to go unlock the door or something.