All you have to do is say Knock-Knock

Then someone else says Who’s there, so basically, it’s like how you usually make knock-knock jokes but you’re typing it out!

Knock Knock!

who’s there?

Atch

Atch who?

Oh, bless you!

Knock knock

who’s there?

Yolo

Yolo who?

Yolo can i have  some slime to spear ? get it?

LOLZ yeah

Knock Knock

who’s there?

Tank

do you  want yoor user page edited(tank who?)

Sure

 You’re welcome! Get it?

Yeah

go to your user page?

Okay