I don’t understand construction. Like, how do they know what to do next?

Commentary:
"Construction workers must have a secret code like 'lefty-loosey, righty-tighty' but with bricks and cement! πŸ€”πŸš§ Maybe it's all just an elaborate game of adult-sized Lego! πŸ˜‚πŸ”¨ #BuildingMysteries"