How do I use the PlayEmote function properly?

wait(2)

game.Players.LocalPlayer.Character.Humanoid:PlayEmote("Wave")

This just errors:

  18:43:22.796 - No emote exists with name Wave

To do it make a starter gui then make a text button then make a local script then put this in it

local btn = script.Parent
local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()
local hum = char:WaitForChild("Humanoid",10)
local CanEmote = true
local CoolDown = 1

btn.MouseButton1Click:connect(function()
	if CanEmote == true then
		hum.JumpPower = 0 -- you can remove this, this really fixes it..
		hum.WalkSpeed = 0 -- this too 
		CanEmote = false 
		local dance = hum:LoadAnimation(script:FindFirstChild("WaveAnim"))
		dance:Play()
		
		wait(CoolDown + dance.Length)
		hum.JumpPower = 50 -- you can remove this, this really fixes it..
		hum.WalkSpeed = 16 -- this too 
		CanEmote = true
	end
end)

then import the wave anim to get it run a game, go into your player in the workspace, go into animaions and go into wave and copy it, then stop the game, then paste the anim into it!