Since humans evolved to be social creatures, awkward/unwanted social situations have always been a part of life. For the most part these situations have been unavoidable until the modern day cell phone was invented. This beautiful device has now become the unspoken easy out of unwanted interactions. See a person you really dont want to start a conversation with? Just pull out your phone, pretend to be immersed in a particularly involved text, and hope that the person sees this and moves on. Everyone has picked up on this technique and uses it to their advantage. Dont expect anyone to admit it though. Odds are youve probably had it done to you.