In an attempt to inspire expressions of gratitude in the work place, I suggest creating an app that allows all the employees in a particular workplace to give shoutouts and receive shoutouts.
The app itself will have everyone in the company on it. Think of it like twitter but everyone who follows you is a work colleague. You can set up your profile with your name, picture, etc.
Shoutouts can be of any kind. Some examples would be acknowledging a peer employee for their effort, hard work, extra hours put in, over-the-top productiveness, ability to manage stress positively... etc. Pretty much anything that an employee does that deserves a pat on the back can be posted on the app.
In order to avoid lengthy posts, the app will have a word limit. For example, employees have to compliment each other in 20 words or less. The idea behind this is to keep the app concise and easy to read for all. Also, lengthy posts could intimidate other employees and they might hesitate from posting all together. Making it a requirement to keep it short and simple avoids this pressure and stops people from getting too personal.
I would like the shoutouts to result in points. The person who receives the shoutout will get more points because they are the one who actually engaged in doing the positive act. However, expressing gratitude to those who deserve it is also important and hence, those who give the shoutouts are awarded points as well. For example if Mary gives Joe a shoutout, Mary earns 3 points for herself and Joe earn 5 points for receiving a shoutout. Allowing the person who gives the shoutout to earn points will hopefully encourage employees to acknowledge each others' work and increase friendliness.
The point system will serve as an incentive for the employees because the points will amount to a gift. The gifts can be decided by the bosses and will vary company to company. Employees may redeem their points a set amount of times per year. Some employees may choose to save up their points while others may choose to spend it as soon as they have enough for the first item- that is entirely up to the individual.