1. For people that "actually picked up the phone and personally expressed their gratitude, we saw increases between 4 and 19 percent...Expressing your gratitude will make you a happier person."
2. "The person who experienced the biggest jump in happiness was the least happy person who walked in the door."
To translate this into the work context, behaviors that demonstrate gratitude are a great form of RECOGNITION. Isn't that important to your employees? Don't be a perpetrator of a gratitude #fail. Explain what you're grateful for, why, and its impact to those you want to thank.