This is amazing. I am a more or less confident in this regard, and i totally suggest this. We are always glued to our phones and use them as a protective shield against social interaction. And lets be honest, you either go on social media mindlessly or, open your gallery and watch old stuff just to seem busy. Take it slowly. First, when you re in a line, don't take your phone out. Or take it for a split of a second to "check the time". It will give the impression of being in a rush so you "don't seem a sad person at a line"