When you rap you need to express yourself, so the words you say are heard and felt. You can teach a child their emotional range by acting out the feelings, rather than explain. Communication is not always with the word, it's what children see as much as is heard. With body language, facial expressions and gestures, they get some framing of reference. By marrying the words with the emotion, a child will connect both and get to know them.
Like if you're crying and you're whining, then you're sad. Boo-hoo. If you're laughing and you're smiling then you're glad. If you argued with a friend at nursery, well then, best to make it up with them, don't feel bad. Remix/Reload!
Like if you're crying and you're whining, then you're sad. Wah wah. If you're laughing and you're smiling, then you're glad. If you argued with a friend at nursery, well then, best to make it up with them, don't feel bad.
That's portraying emotion, now you've had some help, it's over to you to express yourself!