How do I make a SurfaceGUI text button activate this script when the button is clicked on?

So I'm trying to make a game where clicking on a button on a part starts a script.

My script that activates when the button is clicked:

local dup = game.Workspace
local T = .5
local size = Vector3.new (5,5,5)

function REP ()
	while true do
		local part = Instance.new("Part", dup)
		wait()
		part.Anchored = false
		part.Transparency = T
		part.BrickColor = BrickColor.new ('Baby blue')
		part.Reflectance = T
		part.Material = ("Glass")
		part.Size = size
		if wait == 0 then
			part.Anchored = false
			
		end
	end
end

REP()

How do I script a surfaceGui textbutton to run this script when clicked on?

Are you trying to make a click Detector To Pull Up A remote Function Or Remote event To Fire A GUI?