1-you shouldn't take calls when crossing a street
2-you shouldn't interrupt a face-to-face conversation to take a call
3-you shouldn't call people back late at nignt
4-you shouldn't repeat things loudly on a train or a bus
5-you shouldn't use your phone in a hospital
6-you shouldn't keep your mobile phone on during a family dinner
7.you shouldn't leave long voicemail messages
8-you shouldn't keep your phone on in the cinema ot theatre
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