How does it feel for you? What emotions come up in your mind and body?
What about when you realise you've left your mobile device at home, or in a taxi? Are you bereft? Do you crave it?
Last year, 84 per cent of Australians owned a smartphone — and among young people, that figure was 94 per cent.
And our dependence on mobile devices has crept up on us over time, leading to a range of problems, University of Washington Information School's Professor David Levy said.