“People generally don’t realise that something so small could have such a big impact”.
A sense of reciprocity may explain why positive feedback can be such a powerful tool in the workplace. A study by researchers at technology company Intel and Duke University in the US showed that verbal praise was more effective at increasing productivity than cash bonuses.
https://www.bbc.com/worklife/article/20210722-why-we-dont-dole-out-many-compliments-but-should