The Exclamation Mark

The exclamation mark is used to express exasperation,astonishment or surprise or to emphasise a comment or short, sharp phrase.

For example:

1. Help! Help!
2. That's unbelievable!
3. Get out!
4. Look out!

You can also use it to mark a phrase as humourous, ironic or sarcastic.

1. What a lovely day! (when it obviously is not a lovely day)
2. That was clever! (when someone has done something stupid) Some general remarks:
1. Don't overuse the exclamation mark
2. Don't include a series of exclamation marks.
e.g. I'll never get it right!!!!