The era of the media that have only wireless phones in the prom, can zoom in the whole world. Contact with anyone from any corner of the world. Type chat text chat's timeline. Another track the movement of a group of friends on Facebook and contact easy to use but at the same time, the phone user behavior, particularly a group of students-student drug use the phone almost every time a lack of interaction with the surrounding people or view phone screen. Does not speak with the person in front of me even in the classrooms also encounter such behaviour, which is not intended for or interest in the subject that the teacher?
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