Nothing is quite to boring and monotonous as waiting for your plane to board, right? Well KLM Royal Dutch Airline decided to put a little joy into the lives of waiting passengers, social media style, with the KLM Surprise initiative. Over the holidays, KLM looked for passengers who checked into their flights on Foursquare and tweeted about waiting to board, did a little social media research to find out more about them, and then surprised them at their gates with personalized gifts. Surprise or stalking? You be the judge.