How do you insert Pant into a player or so?

pants = script.Parent.Pants:GetChildren()
shirts = script.Parent.shirts:GetChildren()
faces = script.Parent.Faces:GetChildren()
hairs = script.Parent.Hair:GetChildren()
maindummy = game.Workspace.Camera.Dummy_3D
dummy = script.Parent.Dummy
repeat wait() until maindummy and dummy and hairs and faces and shirts and pants

script.Parent["Pant Label"].Next.MouseButton1Click:connect(function()
	curSpawn = pants[math.random(1,#pants)]
    wait() --Let the Character fully load
   	for _,v in pairs(maindummy:GetChildren()) do
			if v:IsA("Pants") then
				v:Destroy()
				curSpawn = maindummy
			end
		end
	for _,v in pairs(dummy:GetChildren()) do
		if v:IsA("Pants") then
			v:Destroy()
			curSpawn = dummy
		end
	end
end)

So I have this folder in my explorer that has like a lot of pants and I want it to random choose the one of it and copy and paste it into the player, how would I do that?