Can you help me with this "GroupHandler" ?!

Hey everyone, TixyScripter here! I was wondering if I can take the script I am about to show you, and turn it into something else?

The Script -

pcall(function()
    game.Players.PlayerAdded:connect(function(player)
        if player:IsInGroup(2628023)                then
        local cashmoney = game.ServerStorage.MoneyStorage:WaitForChild(player.Name)
        cashmoney.Value = cashmoney.Value + 500
        player.CharacterAdded:connect(function(char)
            if char:WaitForChild("Humanoid") then
                char.Humanoid.MaxHealth = char.Humanoid.MaxHealth + 15
                char.Humanoid.Health = char.Humanoid.Health + 15
                char.Humanoid.WalkSpeed = char.Humanoid.WalkSpeed + 3
                end
            end)
            local msg = Instance.new("Hint",workspace)
            msg.Text = player.Name.." joined the game as a member of Spawn-In Studios"
            wait(2)
            msg:Destroy()
            end
        end)
    end)

That script is located in "ServerScriptService" as a normal script... I was wondering how I could turn this script into one that gives them stats when they have left a thumbs up on your game? This particular script gives them things when they are in my group and it works great, but I am unaware on how to change this into a script that gives the bonuses when they thumbs up my game?! If you can please help me out here!!!