My pet spawn in the same position, how do I make the position random?

I made a script where when you click a button, a pet will come out and follow you, and I made it that more than one pet can follow, but the result I got is a disaster. Because when I click the button again the pet spawn in the same place as the other pet, and it all squeeze/stack together and look like a monster. How can I make it that each spawn and follow you in a different position?

Example:

https://cdn.discordapp.com/attachments/456967793397727233/485850971281555477/unknown.png

here is the script, it is a local script

local char = script.Parent.Parent
local hum = char:FindFirstChild("Humanoid")
local head = char:FindFirstChild("Head")
local pet = script.Parent

local maxFloat = 1
local floatInc = 0.025
local sw = false
local fl = 0

while true do
	wait()
	if not sw then
		fl = fl + floatInc
		if fl >= maxFloat then
			sw = true
		end
	else
		fl = fl - floatInc
		if fl <=-maxFloat then
			sw = false
		end
	end
	if pet ~= nil and hum ~= nil and head ~= nil then
		if hum.Health >= 0 then
			local cf = head.CFrame * CFrame.new(3,2+fl,3)
			pet.BodyPosition.Position = Vector3.new(cf.x,cf.y,cf.z)
			pet.BodyGyro.CFrame = head.CFrame * CFrame.new(3,0,-3)
		else
			break
		end
	end
end