One Day without Smartphone "Smartphones, smartphones, smartphones. On public transport is busy replying to chat via smartphone. In the shopping center busy checking app notifications via smartphone. The restaurant is busy commenting on other people's posts through smartpone. Male or female, old or young, alone or in groups, busy with their own smartphones. "That is what my dad said when I asked him why he was not interested in using a smartphone. Undeniably, I also admit how difficult it is to