How can i add a sprint animation in my script

Hello ! i would like to add a animation di in my script so anyone can help me for that ?

here is the script

script.Parent.Activated:Connect(function()
	if script.Parent.Text == "Sprint" then
		script.Parent.Text = "Walk"
		game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 30
	else
		script.Parent.Text = "Sprint"
		game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 16
	end
end)

U can play an animation in your script by loading one like this

local Animation = -- Create an animation or define one that already exists.
local AnimationTrack = Humanoid.Animator:LoadAnimation(Animation)

To play it you can just call

AnimationTrack:Play()

AnimationTrack | Documentation - Roblox Creator Hub

Also I’d suggest defining variables to improve readability for example

local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()
local Humanoid = Character:WaitForChild('Humanoid')