Accessing PlayerGui Through ServerScript?

I know that it requires Remote Events/Functions, but what one would I use? I want it so that when you hit something, It will pop up a GUI which I already have, the server script inside the button says ;

local ListenToGameEvent = game.ReplicatedStorage.Events

script.Parent.Touched:Connect(function(Receiver)
	if Receiver.Parent:FindFirstChildOfClass("Humanoid") then
		if script.Parent.Parent.Parent.Owned.Value ~= true then 
			-- Questionable Remote for ...Client()
		end
	end
end)

and What i've tried from so far it wont work if i call it and say the Client it will only work in a LocalScript, and It will only recieve it from a script so the showing in the ScreenGui in PlayerGui wont appear. Any help?