https://gyazo.com/f4700cf61e29ab8a31f703fbdfc6c5c8
This is assuming the script is parented to the part.
local c = script.Parent.ClickDetector c.MouseHoverEnter:Connect(function(player) -- Just incase you need it script.Parent.BillboardGui.Enabled = true end) c.MouseHoverLeave:Connect(function(player) -- Just incase you need it [2] script.Parent.BillboardGui.Enabled = false end