The 3 Rs: Recognize, Retreat, Report
If you see (Recognize) what you think is a military munition, a UXO, or piece of a munition, the most important thing to remember is do not touch it. Immediately get away (Retreat) from the area in the same direction from which you entered. Make sure to tell (Report) your concern about the suspect munition to an adult (a police officer, a teacher, a parent). The best thing to do is to call 911.