Others are willing to do your bidding as a result of the threats you make, both spoken and unspoken. Looking scary is easy, but making people truly afraid of you is an art.
Experience: You gain Intimidation experience if you caused a character's attitude toward you to significantly worsen.
Complications: You've pushed a character too far. They decide that you need to be dealt with, and will seek help so that they can stand up to you.
Conditions: Frightened: A frightened character won’t try to directly oppose you.