Here are a few words to the wise on what you shouldn’t do when you get back to international travel.

Are you visiting Thailand? Then don’t put a fork in your mouth. If you’re using metal utensils at all, the fork is only to put your food onto the spoon. The only exception is if you’re eating food not served with rice. Now you know.

You know the a-okay sign you can make with your hand? You use your index finger and rest it on your thumb. You then hold the other three fingers straight up. That’s not a-okay in Brazil. You’ve just insulted someone big time.

And if you’re in India, most businesses don’t have landlines and operate only on cell phones. So the best way to communicate is by text message.