For me, I should already have some level of psychological/emotional control over my submissive before the physical restraints come out. There would be a level of trust and honesty already, and communication is key.
That said, you can engineer some pretty fun builds, like "predicament bondage," which forces the recipient into a position where they can choose to either do one thing or another, but either choice they make is met with a penalty on the other side (e.g., if the submissive's hands are tied to their hair, then they could stretch out their hands but it would pull their hair, or they forgo the use of their hands to release the tension on the hair).