We all likely personally know a person that SMSs all day, especially if you have a teenager. However, seeing somebody on their phone briefly doesn't tell you a

We all likely personally know a person that SMSs all day, especially if you have a teenager. However, seeing somebody on their phone briefly doesn't tell you anything. How sure can you be that that passing glance at a person while they were on their phone wasn't the first and only time of the day? What percent of people fit this criteria? I'd wager that a good portion of them only moderately use their devices. It just seems when you are seen by others doing something you rarely do, they assume you do it all day every day and are obsessed. tldr; People watching isn't an indicator of how often individual people do things, just how many people are doing something at any given time.