There are many ways that complimenting someone can lead to happiness. In addition to the good feels you’ll get by making someone else happier, a genuine compliment helps build trust between people. It also is more likely to lead to someone giving you a compliment in return, which can make you feel special. That’s not to say that you should pay someone a compliment just to get one in return, but one good reason to compliment others is that you’ll be promoting a happiness chain that can help change attitudes and build a positive rapport among your coworkers and friends.