People hate to feel manipulated. Whether we’re 5 years old or 50 we like to feel like we have control over what we’re thinking—that’s why there’s regularly a fuss about subliminal influences in advertisements. Just as people don’t like to be “tricked” via ads they don’t want to be tricked via design—so when you scent a space or add a soundscape, for example, don’t “rub people’s nose” in what you are doing. Use the least amount of scent possible (how…