Every time we go to a conference, we see flying robots that are getting smaller and more talented, capable of dynamically avoiding all sorts of obstacles, indoors and out. What's less work is floating calmly through the air, without any concern for hurting people or running into things, or running out of battery: Such is the life of the gentle and slightly chubby Miniature Autonomous Blimp from Georgia Tech (GT-MAB), which can now detect faces and autonomously follow people around. Using a blimp rather than something with spinning rotors solves lots of common problems with UAVs, though it also creates a few new ones. A blimp is inherently very safe, since impacts, even with people, are more comical than dangerous. Without wasting energy keeping itself aloft, battery life is measured in hours rather than minutes, and hovering in particular is very energy efficient, since it's the default state of the blimp.