Cardfight Vanguard How can I tell?

Recently on the Facebook Cardfight Vanguard page I saw a post about fake cards. So I'm wondering how can I tell fake cards from what's real?

Recently on the Facebook Cardfight Vanguard page I saw a post about fake cards. So I'm wondering how can I tell fake cards from what's real?
Copyright © bushiroad All Rights Reserved. Powered by Mirai Gaia (Terms & Conditions)
Student http://cfvanguard.tumblr.com
You can tell by the cards being in English because the cards from boosters 2-5 and the two extra boosters aren't in English. You can also tell by the size and shape of the cards, being rectangles and there isn't a shadow paladin's trial deck out yet.
Vanguard Fighter
Ugh...so many people are asking this. Let's just say you are extremely stupid if you buy fake cards thinking they are real.
A, they are not packaged like regular cards. Instead of boosters, they will come in a poorly designed box with the set name. The cards themselves will have bad english and will be bad quality.
Do not worry about buying fake cards. You will know if they are fake.