If you would like to ask a stranger to dance with you, read them through some casual eye contact and by moving closer to them on the dance floor.
Jackson needed to make eye contact.
He picked at his food, and avoided eye contact with Adrienne.
This lack of eye contact later enables Kate to begin the process of stooping to conquer.
However, you have to listen to what they are telling you with their body - with their proximity to you, how they are holding your hands, what kind of eye contact.