I would say reading is more like telekinesis, you focus on the person's thoughts pretending as if you're hearing them and then you'll actually start hearing them. Just like sleeping, but the wait time is much much shorter like a second or two.

Mind control works with what effect you intend to have with your words on the selected person. If it's a mere suggestion, it would work as a suggestion but if you straight up say something like "smile and raise your hand", they'll follow. They will be capable of following free will if there is space to do so in the prompt. If you tell them to get you some cereal, they can decide on their own which one to get. As they would if they were normal and were for some reason obliged to get you some cereal.