It worries me that in the USA, they ask exit row pax if they speak English, but not here. I did SYD/ADL for about two years, mostly in 737s where you have to lift the hatch in, rotate it and throw it out. On many 8am flights, there would be many pax from Intl connections, and many oldies (OK I'm not so young either) would have the window seat. I sat next to many Asian and one Spanish speaking guy who could not understand the repeated instruction about baggage under seats in the exit row, yet they were never moved. They never read the card either. Out of Canberra, it is stunning to see how mnay petite young ladies get window exit row seats. Some look barely strong enough to do the hatch thing. I think that after watching the Hudson River ditch, I'm going to be be more proactive and complain to the FA.