If someone is supposed to be the target of your attention (be it in class, at dinner or during your every day life) societal expectations should be that you giv

If someone is supposed to be the target of your attention (be it in class, at dinner or during your every day life) societal expectations should be that you give them your attention. 20 years ago you wouldn't turn on the television in the middle of a conversation, you wouldn't turn on the radio either. I can sort of understand if it's a child in high school, after all they're in class because they're required to be, however in a class that has been chosen (by an adult) it's not acceptable. The student should have excused herself from the class if it was so important her attention was elsewhere.