Scratch

Sprite 2
When Green Flag Clicked
Say "[Whatever]"
Broadcast [Next]
Sprite 1
When I Receive Next
Say "[Whatever]"

Or a less efficient way u can try:

Sprite1
When green flag clicked
Say [i liek cupcakes] for [2] secs
Wait [2] secs

Sprite2
When green flag clicked
Wait [2] secs
Say [meh too!] for [2] secs

You can change the text, but if you're not confident, leave the numbers alone for now.

Hope I helped 

helltank wrote:

@The_Dancing_Donut:It's impossible for someone to eat himself. Besides, he would die anyway, so why eat himself?

But as to the script, that works for 2 speech bubbles. What if you want to have a long conversation lasting 2 hours and 99999999999999999999999999999999999999999999999999999 speech bubbles?

No, I'm not actually a tank. I'm the supreme ruler of the universe, overlord of chaos and respected god.

PS:Jesus still owes me 5 bucks.

Um helloooo?! It's a joke!! And anyways, doughnuts can do anything they want. They're MAGIC 
If you want to use my method, you have you keep putting 'wait 2 secs', e.g.

Sprite1
When flag pressed
Say [Hi bob] for 2 secs
Wait 2 secs
Say [what u doing?] for 2 secs
Wait 2 secs
Say [sounds fun] for 2 secs

Sprite2
When flag pressed
Wait 2 secs
Say [hi bill] for 2 secs
Wait 2 secs
Say [eating myself] for 2 secs
Wait 2 secs
Say [it is] for 2 secs

...and so on.
So HA helltank! It works! Try it!