if you know what an artichoke is .. (yes, i've had several out of staters not know what either of these foods were)
these are my favorite off some list i found: you don't exterminate your roaches, you smoke them you pack shorts and a T-shirt for skiing in the snow, and a sweater and a wetsuit for the beach you've been to a baby shower that has two mothers and a sperm donor a really great parking space can totally move you to tears gas costs $2.00 per gallon more than anywhere else in the U. S. your governor is a cybernetic organism, living tissue over endoskeleton
this one is way better, hit the fukin dot: http://www.city-data.com/forum/california/213132-you-know-youre-califonia-when.html
that second one is pretty funny, but thus far the way americans outside of california feel about californians is roughtly akin to how the rest of the world feels about americans. so i tell people i'm from new mexico.
You take a bus and are shocked at two people carrying on a conversation in English. :smilielol5::smilielol5::smilielol5::smilielol5: