If you are Asian or green people, you really need to know how to use "Haiya!" because it is the most crusial word for asian people and the word contains full of MSG so that it give more meaning and flavor to what you say.
This video tutorial explains everything about "HAIYA", what that means and how to use it.
This video explains more advance usage of "HAIYA" and "HAIYA" is actually very hard to master because it is just impossible to watch and learn without 馃ぃ馃ぃ馃ぃ
This video tutorial explains not only how to use "HAIYA" but also explains about MSG of the internet.
If you don't know what that means? 馃憞
Japanese people don't use GREEN color for "green people".
When people are "green" it is BLUE in Japan so green people are more like blue people.
How about in your country/culture? Is it green? or blue? or something else?
Anyway, if you feel colorful, you should definitely use "HAIYA" to enhance your emotions like MSG.