Giving a compliment to someone can make their day. Telling a taxi driver "you are driving very well" or telling a masseuse "you have a healing hand" is compliment for their work. Complimenting someone doesn't cost you-it doesn't cost you time, energy, or money. Still, it can be very powerful.
In a country like Japan where Mannerism and politeness are very important, you need to be able to compliment others in Japanese. Simple free phrases in Japanese are easy to learn.
To learn, how to compliment someone,