How do I make a bubble chat appear on a part?

I'd just like to make this clear: I am NOT looking for the dialog chat such as

game:GetService("Chat"):Chat(Part, "Hi!", "Red")

I am actually wondering how I could make a brick appear with ROBLOX's Default Chat. The normal chat that users use.

(No color, just plain white)

I hate to say this, but I do not think that is possible in Roblox stuido, unless you want to insert a decal that looks like a roblox chat bubble. So then what you could do for that is go into a green screen server or make your own, and make sure that chat bubbles are on, then say what you want, take a screenshot and edit the green screen out. If you want to have the part change what it is saying then just change the decal id through script which wouldn't be hard. Make sure you align the decal on a transparent thin part, and make sure you cannot collide with the part that the decals are on. This is my best and only guess. Sorry I cannot solve your issue through script.

--[[You can change the name of the script to like "Chat" or whatever.]]--

while true do --Loops the script
game:GetService("Chat"):Chat(script.Parent.Head, "Am I supposed to say something?", Enum.ChatColor.Blue)
wait(4) -- Insert how long you want it to take before it says something else
game:GetService("Chat"):Chat(script.Parent.Head, "Am I supposed to say something?", Enum.ChatColor.Blue)
wait(4)
end