Moody! Whoosh.

My mood went from 10 to 1 this afternoon…

Interjections
(4:35 pm Wheeee!)

Show excitement
(4:37 pm YAY!)

and emotion
(4:40 pm BOO!)

They’re generally set apart from a sentence by an exclamation point
(5:00 pm BAH!)

Or by a (DRINK!) when the feeling is very strong.
(6:00 pm)