Next time you are in front of a building with a steady crowd going in and out, sit back and watch for a few minutes. Some people hurry through the door. Others hold the door for the people behind them ...

It’s not hard. It feels hard! When you walk through a door right before someone else, you need to hold that door open for them, or else you’re rude. But if they’re a little too far behind you, they ...

We’ve all at some point encountered that awkward situation: should I stay? Should I go? Should I turn around? Do I keep walking and try to help? The real dilemma here is how close or far away should a ...