Memory Game Safety SignsOnline version This will help you practice safety signs. by Julianne Linza Watch where you are walking. Keep matches, lighters, and cigarettes away! People are keeping this community safe. Do not pick this up! This is a place where young adults who are in trouble could go. Firefighters and EMTs work here. Hazardous, toxic materials like blood are in here. It could electrocute or shock you.