How to use Click Detector to open a Gui?

For first insert RemoteEvent into replicatedstorage and replace the localscript inside the clickdetector to script and type in this

Other answers are bad

local Event = game:GetService("ReplicatedStorage"):WaitForChild("Example") --your RE name here
local CD = script.Parent

CD.MouseClick:Connect(function(Player)
    Event:FireClient(Player) --Firing to player
end)

Now insert a localscript inside the starterGui and type in

local Event = game:GetService("ReplicatedStorage"):WaitForChild("Example") --your RE name here
local Player = game.Players.LocalPlayer
local ImageLabel = Player.PlayerGui.ScreenGui.ImageLabel

Event.OnClientEvent:Connect(function() --this script starting work, when player clicked on the clickdetector
    ImageLabel.Visible = true 
end)

Maybe try this

script.Parent.MouseClick:Connect(function(player)
   if player.Name == "Name here” then
      game.Players.LocalPlayer.PlayerGui.ScreenGui.ImageLabel.Visible = true
   end
end)

This way, the if statement checks who clicked the click detector.If the person who clicked the click detector and his name was what’s in the "..." then it will continue to run the code.Hope this helps.

Also make sure the script is a local script.

You want to find the player connected to the character that is clicking the ClickDetector. You do that by typing GetPlayerFromCharacter()

Like this:

script.Parent.MouseClick:Connect(function(player)
    game:GetService("Players"):GetPlayerFromCharacter(player).PlayerGui.ScreenGui.ImageLabel.Visible = true
end)