I've worked as a Greeter in a Health Clinic for 6 years and I get paid to be "nice." Here's what's interesting: Not everyone likes when I'm nice to them - in fact, some of them get downright offended. I don't let it bother me but their reaction seems based on fear.

It's interesting because smiling is free - it literally costs nothing. However, a smile does have value, and is an emotional transaction with another person. A simple smile can sometimes have more impact than we can understand.

Having said that, a smile is also something we should never expect or demand from someone else. That's what makes them so special when they are freely given.

Kindness is the International Currency.