How to make the chat fly off the shoulder and not the head?

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#1

How to make the chat fly off the shoulder and not the head?
I made it so that it flies out of my head, just like in this video:


And this is my script:

local ChatService = game:GetService("Chat")

local Head1 = script.Parent.Dummy1.Head
local Head2 = script.Parent.Dummy2.Head




wait(40)

while true do
ChatService:Chat(Head1, "")

wait(3)
ChatService:Chat(Head2, "")
wait(2)
ChatService:Chat(Head1, "")
wait(3)
ChatService:Chat(Head2, "")
wait(3)
ChatService:Chat(Head2, "")

break
end

And how to make text bubbles fly out of the arm ?