Originally Posted by rkkwan

When they start the initial descend, I turn down my headphone so I can hear announcements. When I hear the "ding ding" at 10,000ft, I take off my noise-isolating headphones, return seat to upright and return tray. I have trash in hand ready to give to FA for the last pickup. All before the FA actually made the announcement.

I actually do all of that myself when I'm flying. I don't fly enough to qualify for plat, but I notice these things. Just to make the lives of the FAs easier.