Strangers. They look like ordinary people and may seem nice when you meet them.

But not all strangers are nice. In fact, they can be very dangerous.

"If you are approached by a stranger, don't talk to them and never go anywhere with them," says Monroe County Sheriff's Deputy Dave Buchko.

Who are strangers anyway? They are people you don't know or have never seen before. They can seem friendly by offering toys or candy, or simply asking for directions. But since you don't know the person, you cannot trust them.

Take safety precautions, advises Deputy Buchko, a liaison officer at Mason Consolidated Schools.

There's "safety in numbers," so don't go out alone. And when you do go out, tell an adult where you are going, he says.

If a stranger approaches you, it's okay to say "No!" and run away if you feel threatened.

It isn't always easy to spot a stranger who may be dangerous, he warns.

"Strangers don't always look like big, mean, nasty people," said Deputy Buchko, who also runs Safety City in Monroe. "I'll ask a lot of little kids to describe strangers and they'll say they have big teeth and are ugly like the Boogey Man. That's not the case. A stranger looks like an everyday average person that looks harmless."

Not all strangers are bad, however. It's important to know the difference. There are good strangers and bad strangers.

"Good strangers are those with uniforms on, like policemen and firefighters. If they are in a uniform, they are here to protect," he said. "So if you are lost or need help, look for a good stranger."

Being safe at home also is important. In case of an emergency, dial 911 for help. When you call, you must be able to give your name, address and phone number.

"Also know your parents' full names. Many children who are (ages) 4 to 6 don't know their last name. It's important to know names, addresses and phone numbers in case you have to call 911," he said.

Deputy Buchko offers three tips to help you remain safe if you are ever home alone.

"Make sure you lock all the doors, keep some lights on and don't answer the phone or the door," he said.