Ahmed Ali has just returned to his home in Britain after helping to set up a friend's coffee shop in Berlin. He could become one of more than 300,000 Britons who work in other EU countries. This is his personal perspective on Britain's EU referendum.<br />Click here to subscribe to The Economist on YouTube: http://econ.trib.al/rWl91R7 <br /><br />In our "On Diary" series, three Britons share what is at stake for them if the country votes to leave the EU in its referendum on June 23rd.<br /><br />Check out Economist Films: http://films.economist.com/ <br />Check out The Economist’s full video catalogue: http://econ.st/20IehQk <br />Like The Economist on Facebook: https://www.facebook.com/TheEconomist/ <br />Follow The Economist on Twitter: https://twitter.com/theeconomist <br />Read our Tumblr: http://theeconomist.tumblr.com/ <br />Follow us on Instagram: https://www.instagram.com/theeconomist/ <br />Check out our Pinterest: https://uk.pinterest.com/theeconomist/<br />Follow us on LINE: http://econ.st/1WXkOo6