I'm trying to make this script change everyone's UI text. No errors from output either and it is in LocalScript
Code
local pluir = game.Players.LocalPlayer.PlayerGui
plrui.SpeakerUI.Background.Speaker.Text = "Teacher"
plrui.SpeakerUI.Background.Mesage.Text = "Welcome to class kids! We will be taking the ROBLOXian test of 2009. I hoped you slept early and had a good breakfest to start the day. I'll be reading the rules in a moment after announcements."
