marking the doorposts

Just wondering how many of you mark the doorposts of your house...how do people know your household is a christian one or one that has faith?

It might be you have a mezuzah on your door..or some other kind of scripture inscribed somewhere, maybe your doormat has a blessing on it?
Or you have the fish symbol on your car, bumper sticker
Or maybe you wear a cross necklace, or perhaps a tattoo
Or ther is a red cord somewhere like what Rahab had for the spies
or maybe its just your yard is REALLY clean and tidy with no weeds at all?

Do strangers or visitors know they are free to pray with you when they enter your abode?

I would recommend this;

Matthew 5:16 ... Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.

I used a wooden cross nailed to my post on my entryway

No, but I will do it.

In the old testament the law was given in stone, it was given by rules and often with a physical symbol of the law of the spirit. Circumcision was given by cutting skin, the new covenant goes directly to the spirit of the law. Because of this many Christians forget that all scripture is by a holy God that does not err. They eliminate every command that involves anything physical. I think this is a mistake.

I want a mezuzah on my doorpost, but often it is interpreted as announcing I am Jewish rather than that I love the Lord and accept Christ.

fairy lights all around your home maybe?