Stop and stay calm
Reconstruct your last known steps
Check the most likely places first
Search one area at a time
Look in unusual spots
Check pockets, bags, and containers
Retrace your route
Ask people nearby
Use a flashlight to inspect dark areas
Listen for sounds if the item can make noise
Use tracking apps or device locators
Call places you visited
Check lost-and-found locations
Search again after a short break
Keep a designated place for important items