Answer
Colon: Introduces new information at the end of a sentence: emphasizes it.
Interjection: Introduces new information at the end of a sentence, wow!
Attention-grabbing: End a sentence with important information that demands attention!
List: Separate items in a list with commas: apples, oranges, and bananas.
Emphasis: Use a dash to separate additional information in a sentence - it adds extra emphasis.