Hi Machinbird,
I've been trying to pin down what specific training in my background convinces me that I would recognize the stall in the same situation that the AF447 crew faced.
I was wondering the same thing myself. The Airbus Flight Training Study Guide (2003) had the following recommendation when in ALT LAW and approaching the stall: (see page 13)
http://www.737ng.co.uk/a320training.pdf
"Eventually, the master warning and aural warnings will activate (crickets and “STALL, STALL” ). Recover at the stall warning by
selecting TOGA thrust, maintain a pitch attitude for level flight and accelerate through VLS."
Unfortunately, AF 447 crew discovered that it doesn't work at FL 350.
(They probably had it demonstrated at 5,000 ft in their sim conversion course.)