It's easy, if your avatar is a person, you have to talk like they would.

Ex: If it's Sora, you have to be upbeat and positive.

(And if it isn't a real character, than you can make up your own personality!)

I'll go first:

 

Iceland: I am NOT going to call you onii-chan.

You said cake! I heard cake!Cake!

I thought you said cake!!!! I want cake!!!! Possibly with a talking dog-thing and a duck!!!!

*Aims gun at head* PERSONA!

*cries* A gun killed my family! 

Yuri: GEE, GEE, GEE

 

Namine:... Where is my sketch book....?

*cries* No,no,no,no!

Oh bother, I blew up the town of Cleveland, Christopher Robin will be quite in a tizzy with a rumbley tummy gun when he finds out

*Starts listening to music*

No,no,no!*hides from guns*

I'm sick of you humans messing up the ocean! Time to pay!

I'm sorry.

No matter how many times you say it, it won't do you any squidding good!

Caught dumping honey prosessing waste in the ocean

 

.... Is this a bad time?

Y-yes! Honey is just as bad as oil!

Oh bother, it seems to be attracting sea bears. Better draw a circle

We are three people he he he

"shorty? Can a shorty do this? What else are you gonna call me, a half pint, beansprout midget?!! I'm still growing you back water desert idiots!!!!"

We are three people he he he

Wait.... Your THREE peopleBut we're two....FINALY were not alone!!!!!!!!Lets go kill some hefilumps together those honey stealing bestards

Last thing you want to do, is get me in a tidal-raging mood!

Foolish little brother... Come back when you have the same eyes as me...

I'm not your bother *cries* (The gif,people it's the gif!)

Zzzzzzzzzzzzzzzzzzz....

bear tired

"who are you calling shorter than Roy Mustang's miniskirt?!!!?"

Hello everyone, my name is Black Star! Welcome to my show! I'm glad so many people came to watch me, the number one Meister, the greatest star, Black Star! Now, before I wow you all with my amazing skills with weaponry, allow me to explain more about myself: I've been a student of the DWMA for a long time, and my Weapon is Tsubaki! She has all sorts of forms, all of which I'm a master of using, of course! In fact, I'm one of the few people who can actually use her Enchanted Sword mode without dying! One day, I'll surpass even Death himself and be the greatest Meister of all time!