Sometimes it's hard to believe the author is as excited as that exclamation point implies!
The mild-mannered hyphen can turn a string of otherwise well behaved words into a hellish modifier. A pair of come-up-and-see-me-around-midnight stockings can eventually lead to: Don't think you can fool me with that I'm-trying-to-prove-I-haven't-been-fooling-around-so-I-stopped-and-picked-up-a-broasted-chicken-for-dinner offering!
Ampersand is a long word for a small symbol (&). The at symbol (@) gave us all pinpoints in cyberland on the wings of an email addy. The asterisk is an outlaw (****); and the number symbol is deeply misunderstood (#). You're never supposed to use the percent symbol (%) in prose text. You're always supposed to use the word "percent." Why? Did % do something naughty?
Now dig how those aliens above the numbers on the keyboard can transform into their secret alter egos when shin unhappily meets coffee table.
It's a sweet sort of show-don't-tell policy, almost quaint.
You want to see something sad? Take the content out of a pair of parentheses.
The apostrophe relaxes everyone. Who would you rather negotiate with?
Don't vs. Do not
You're vs. You are
What's vs. What is
When you use all uppercase letters THE READER FEELS LIKE YOU ARE SHOUTING AT THEM.
The most authoritative punctuation mark, however, is the period.
. . .