Here is a short list of identifying behaviour, that could mean you have been assimilated... err you may be Orthodox.  This list found on The Onion Dome.

1. You have an emergency head scarf in your glove compartment.
2. You know all the take-out restaurants near your place of employment that serve meat-free, dairy-free meals.
3. You think of peanut butter as one of the essential food groups.
4. You think of shrimp as "vegan."
5. You have developed ways of stretching your legs while standing in place without drawing attention to yourself.
6. You can't describe your Sunday morning church service to co-workers without using foreign terms.
7. You've ever gotten into an argument with somebody about the ingredients in marshmallows.
8. History Channel shows about the Byzantine Empire make you wistful.
9. Sending your misbehaving teenager off to a monastery on a Greek island doesn't seem like a bizarre idea at all but a very practical one.
10. Bestselling paperbacks containing obscure historical tidbits about the 4th century make you go, "Hey, that's not the way it happened!"
11. You use "icon" as a verb.
12. You go to a friend's wedding and wonder why the walls inside the church look so bare.
13. The phrase "let us complete our prayers" doesn't make you look at your watch.
14. You know which brands of margarine are dairy-free.
15. And buy them.
16. Religious terms like 'te deum' or 'mass' in a book about pre-revolutionary Russia set your teeth on edge.
17. You think "plagal" means "add 4."
18. "Old calendar" doesn't mean "last year's calendar" to you.
19. You use "ecumenist" as a swear-word, or have had it so used against you.
20. You use "Metropolitan" as a noun. And you don't mean the car.
21. You automatically do mental arithmetic if somebody mentions a date, or the number of a psalm.
22. You know of two distinct groups of people referred to as "the seventy" and know from context which is meant.
23. Your answer to "Is the Pope Polish?" is "Rome or Alexandria?"
24. You think of chicken as a luxury and shrimp as a staple.
25. "Georgia" makes you think of Tbilisi and not Atlanta.
26. The phrase "both Catholic and Protestant" puts your nose out of joint.
27. You think Rice Krispy™ bars are meat, but clams are not.