Story game animation activate help

Hello developers, I am making a Story game, I have made an animation and the script to make a NPC go to the part. However, I don’t know how to make it activate the walk animation if anyone can help me, I would highly appreciate it if anyone could help me!

Here is the script if anyone needs it;

-- get pathfinding service
local pathfindingService = game:GetService("PathfindingService")

-- Variables for NPC humanoid, torso, and destination
local humanoid = script.Parent.Humanoid
local body = script.Parent:FindFirstChild("HumanoidRootPart") or script.Parent:FindFirstChild("Torso")
local destination = game.Workspace.Destination.Position

-- create path object
local path = pathfindingService:CreatePath()

-- compute a path
path:ComputeAsync(body.Position, destination)

-- get the waypoints table
local waypoints = path:GetWaypoints()

-- iterate through all waypoints, and jump when necessary
for k, waypoint in pairs(waypoints) do
	humanoid:MoveTo(waypoint.Position)

	-- change humanoid state to jump if necessary
	if waypoint.Action == Enum.PathWaypointAction.Jump then
		humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
	end

	humanoid.MoveToFinished:Wait()
end

And this is my workspace!

I would recommend reading up on Animations within games in the article below:

Using Animations in Games

Basically, you’ll want to get the Humanoid of the NPC and use Humanoid:LoadAnimation (preferably Animator:LoadAnimation since the Humanoid counterpart is deprecated), and load the animation in and play it.

I hope this helps!

I found this script which I would like to use, however it doesn’t explain where to put the script inside of the rig.

local rig = script.Parent
 
-- Destroy the humanoid object if it exists
local humanoid = rig:FindFirstChildOfClass("Humanoid")
if humanoid then
	humanoid:Destroy()
end
 
-- Create new "Animation" instance
local kickAnimation = Instance.new("Animation")
-- Set its "AnimationId" to the corresponding animation asset ID
kickAnimation.AnimationId = "rbxassetid://2515090838"
 
-- Create a new "AnimationController" and "Animator"
local animController = Instance.new("AnimationController")
animController.Parent = rig
local animator = Instance.new("Animator")
animator.Parent = animController
 
-- Load animation onto the animator
local kickAnimationTrack = animator:LoadAnimation(kickAnimation)
 
-- Play animation track
kickAnimationTrack:Play()
 
-- If a named event was defined for the animation, connect it to "GetMarkerReachedSignal"
kickAnimationTrack:GetMarkerReachedSignal("KickEnd"):Connect(function(paramString)
	print(paramString)
end)