Just do the simple things if its got shock sensors try to trigger them, kick the wheels hit some pillers, or another one is lock it with the remote and open it with just the key, check bothsides and you should see, if its got bonnet protection open bonnet, hold down the sensor lock with remote and then remove your finger from the sensor. that will help you determine the shock needed to set your alarm off, both doors to see if the are both set on the alarm circuit and bonnet protection.
From there you can always try to start it with the key if the alarm armed to see if the immobilizer/fuel cut or ignition cut is working
Hope that helps