Gagan Biyani on why the best way to learn people skills is to build something you can't do alone, and how HAA is designed around it: "One of the most important things we want is to develop people skills. And one of the core tenets of developing a skill like that is osmosis. You need to immerse the student in the social environment in which the humans are." "I think it's a challenge if you go off to college, you only interact with people your same year. You finally maybe have a friend who's…