In a public setting, i.e. dinner or a waiting room, when one person gets on a cell phone, the other(s) at the table are compelled to be on their phones also. The faster the other cell phones come out is directly proportional to those individual's lack of self-esteem.
1. Joe and Jen are on a date, Jen gets a call. Within moments, like a telecommunicable disease, Joe whips out his phone and begins randomly texting his friends.
2. While waiting for the nurse to come in, fidgety Phil whips out his cell phone to call his buddy. In response, others in the waiting room start diddling with their phones.