Surprise:
* Wow!
* Oh!
* Gosh!
* My goodness!
* Goodness gracious!
* Holy moly!
* Ouch!
* Yikes!
Joy:
* Yay!
* Hooray!
* Hurray!
* Awesome!
* Fantastic!
* Great!
Displeasure:
* Ugh!
* Eww!
* Phew!
* Brrr!
* Argh!
* Darn it!
* Oh no!
Agreement:
* Yes!
* Okay!
* Right!
* Sure!
Disagreement:
* No!
* Nope!
* Nah!
Calling for attention:
* Hey!
* Hello!
* Listen!
* Look!
Other:
* Well...
* Hmm...
* Oh dear!
* Goodness me!
* By golly!
* Jeepers!
Examples in context:
* "Wow! That's a beautiful painting!"
* "Ouch! That really hurt."
* "Ugh! I forgot my umbrella."
* "Yes! I finally finished the project."
* "Hey! Can you hear me?"
* "Well... I'm not sure what to say."
Remember that interjections are often followed by an exclamation point, but they can also be followed by a comma, especially when they are less forceful.