My grandmother who died recently was a gifted social warmer. She had an innate ability to know how to disarm people. Step one: Making people feel comfortable.
In Melbourne at the place I have been buying my sushi for lunch, there is a bowl of homegrown fruit that is there for the taking. Step two: Making people feel included.
In the kitchen at work this poster is stuck on the wall, listing how everybody takes their tea and coffee. Step three: Bringing people together.