How do you make a player talk from only head(with scripting)?

So what i mean is when the player clicks a certain key i would want them to stop talking in chat but instead just talk from above the head, is this possible?

With scripting you'll use:

game:GetService("Chat"):Chat(<path to where the head is located>, "<string>", Enum.ChatColor.<color>)

When it is in arrows, that means you put that there.