Displaying a security or alarm sign for your system can scare off potential thieves.
If you are going on a long vacation, no need to advertise the fact with an empty driveway. A car can make it look like you are home.
If repairmen and other home-related service people enter your home while you are at work, make sure to learn who they are or stay home while they work.
Newspapers stacked up or other flyers on the door can signal that nobody is home. Suspend your delivery services or ask a neighbor to clear the clutter.
Interior lighting shows signs of life and activity. A house that is dark night after night sends the message that the house is empty.
Don't answer the door or let strangers into your home, says Chris McGoey. If people are coming to visit you, know who they are.