Someone just told you something surprising.
Ah, bon?
Someone says something that is true for you, too.
Moi aussi!
A person who looks too young orders a drink w/ alcohol.
Tu as quel âge?
Your friend shows up with someone you don't know.
Qui est-ce?
Someone asks if they can do something that they obviously can do.
Bien sûr!
You're trying to appear brave in front of a new friend who dares you to do something.
Je n'ai pas peur!
You're ready to go, but your friend is a slowpoke.
Allons-y!/ On y va!
