Remember, you don't have to use an interjection every time you write. They should be used sparingly, so that they have the most impact.
Definition
Interjections are a great way to add emotion to your writing. They can show joy, surprise, anger, or any other feeling you want to convey.
Interjections of joy represent one’s happiness.
When you're writing, think about what feeling you want to convey. Then, choose an interjection that conveys that feeling. If you're not sure what interjection to use, try looking up a list of common interjections.
Examples
Examples with sentences
Conclusion
Interjection of joy is used to express positive emotions in a sentence.