Stay calm and think about the last time you had it
Retrace your steps slowly
Check the most likely places first
Look in pockets, bags, drawers, and under furniture
Ask people nearby if they have seen it
Search one area at a time
Use a flashlight to check dark or hidden spots
Listen for sounds if the item can make noise
Check places where you usually put similar things
Search again after taking a short break
Mark off places you have already checked
Contact lost and found if you were in a public place
Report it if the item is valuable or important
Replace the item if it cannot be found