When the doors are closed, I ask the F/Os if they are caught up and ready to go.
We run the “Before Start” Checklist to the “Anti Collision Light”.
I then ask the ground crew to ensure they have accomplished their final checks and equipment and pins removed from the jet.
We get our push back and start clearance... Finish the “Before Start Checklist - “Anti Collision Light —— On”... and away we go.
Takes a few seconds extra, but everyone is in the loop. No fuss no muss.