For both f/w and rotary aircraft I look out, switch on any lights and strobes that exist AND ALSO call "Clear" (I dispense with the "prop" since helicopters don't have one). It might not do any good, but it might, and it certainly can't do any harm. If it saves one life someday...
What's the problem; is it that you're all being terribly English and reserved and don't like yelling?