This article talks about different behaviors that are commonly contagious. First things first, yawning. Everyone knows that when you yawn, more than likely there will be someone else in the room that will yawn alongside with you. Even watching someone yawn on tv or in a video can cause you to yawn yourself. Another common behavior that is contagious is frowning or crying. I know I personally can start to feel empathy once I see someone frowning or crying. I may start even crying myself. This also works for laughing and smiling. Children in fact may use some of these contagious behaviors in order to get what they want from someone.
Some of the other behaviors listed include rudeness in the workplace (which can explain why some workplaces have a reputation of chronic rudeness while others do not), the feeling of being cold, and taking risks.
7 Behaviors That Are Actually Contagious