AS I metioned before, I think one of the FAs on the flight said she hadn't realised they had even ditched as the 'landing' was so smooth (
to the pilots!)
So, either they called for jackets on opening the doors, or the pax saw out the window and just put them on.
You can clearly see pax with jackets on in this picture. Since it was so cold a lifejacket would have definitely improved their chances if they fell in- luckily they could stay on the wing in most cases til boats arrived.
In one photo there's even a guy with his lifejacket on 'upside down'! Didn't know it was possible til then!
