A display of affection is a way to show someone that you care about them. It can be done in many ways, such as bussing, kissing, hugging, and caressing. Bussing is a light KISS on the cheek or lips, while kissing is pressing one's lips against another person's. Hugging is wrapping one's arms around another person, and caressing is a gentle touch or stroke. All of these actions are ways to express love and appreciation for someone.