Happy 18th birthday.

Welcome to manhood.

Welcome to womanhood.

Congratulations! You're finally legal.

I cried on my 18th birthday. I thought 17 was such a nice age. You're young enough to get away with things, but you're old enough, too.-
- Liv Tyler

You only have 2 more years as a teenager, then you'll be officially old.

You're only 18 once, so enjoy it.

Be careful, your at the age when your parents can legally kick you out of their home.

Happy 18th anniversary of your birth.

Congratulations on your 18th birthday.

It took 18 years for you to look this good!