How it works
A hyphen is a short line that ties words into one big word, like well-known and merry-go-round.
An apostrophe is a tiny hook. It marks the spot where letters are missing, as in don't, and it also shows who owns something, as in Sam's hat.
The hyphen key is the key next to zero, at the end of the number row. The apostrophe key is on the home row, just past the semicolon. Your right pinky reaches for both, and neither needs shift.
To show an owner, type the name, then the hook, then s.