It's fairly easy in my area because it's generally assumed one IS a Christian until proven otherwise, and because it's popular to use "tells" such as cross and religious bumper stickers on vehicles, "faith" jewelry, signs and banners in personal work spaces and public businesses, and, of course, prominent tattoos. Oh, and the frequent use of the expression "Have a blessed day!"

if you replace the word with (muslim) then yes i just know.

Yes. Christians are just like gays (I am gay) in that way... With some of hem it is just so obvious!

There are some that stick out more than others but I try not to judge if possible. But on the average, if you line up 100 people, the odds are in favor of being more xtians than not unfortunately those are the facts.

No. That is stereotyping.

I have an uncanny ability to spot Mormons...even when not in suits on bicycles.

"Just knowing" is what the God Squad are about so no I don't.

Its in the eyes. They look wide eyed, surprised and in awe at just about everything, you know, because they don't think about it.

I don't think i do. The dress code i know of helps me or gives me an idea of their denomination. I don't think i could pick out a Christian in a crowd unless they make certain statements and even thats a maybe. I kind of mind my own business. I do a lot of reading and studying to keep my mind occupied.

Other than something obvious like wearing a cross, not really.

I can do that with Mormons. Really easy with Hutterites and Mennonites, too.

Mormons are easy as they look too wholesome. Jehovah’s Witnesses are never happy. Evangelicals stand out as soon as they open their mouths.

Lol. If they are coming out of a church or are wearing a cross.