I cannot stress enough that the answer to life's questions is often in people's faces. Try putting your iPhones down once in a while and look in people's faces. People's faces will tell you amazing things. Like if they are angry or nauseous or asleep.
I mean it's fine when you're a kid and someone runs into the playground and goes 'I've got this great game of pretend ' and you play... As an actor getting to play getting to use your imagination and be childish - it is weird but it's wonderful.