In coffee shops all over the world you will find people typing away on their laptops, iPads and phones. As I am writing this I am one of them and am I surrounded by people working and from what I can tell, enjoying themselves. For me, taking a break from the office and working in a coffee shop is better than taking a break and not working. Your out, your enjoying the city with other people around and you are being productive. Taking a working break from your work is not only good for you, but it is good for the soul.
However, if you are not obsessed with your work, spending 20 minutes on Instagram is just as fun!