Question: How do people get the picture under there post?

[ImSword]

Like if someone has a picture under what they said, how do you get that?

 

[Nihilego]

That's a signature. You can change its contents here.

 

[Ivysaur]

It's called a signature and you can make one here: https://www.pokecommunity.com/profile.php?do=editsignature

Just add a text or images, as if it were a regular post. There are some rules as to how many images or text you can put though. Check this thread for more info: https://www.pokecommunity.com/threads/267370

(Damn you Harry!)

 

[ImSword]

Test

How do I get my signature to appear on posts?

 

[Hybrid Trainer]

I'll just redirect you to this thread which shows pretty much every way possible to get your signature to show x)