Next time you're abroad, watch out for these American habits other countries think are rude. Us Yanks aren't the most popular kids in the global school at the best of times - you don't need to commit a social faux-pas to exacerbate the situation. Whether it's a gesture or word, rude things American tourists do can reinforce the host country's negative perception of Americans, even if you've got the best of intentions. So brush up on these habits or American phrases that are rude in other places and you'll have nothing to fear on your next holiday.
A head-back belly laugh will be taken as a compliment stateside - after all, nobody wants their joke met with a polite chuckle. But laughing with your mouth open and teeth exposed is a social no-no in Japan. They'd rather you zip your lips while laughing.
Half the fun of giving gifts is watching people open them, right? Wrong, if you're living in many Asian countries. Americans are used to birthday parties and holidays where gift-giving is a shared social activity. But tearing off the wrapping paper in front of the person who gave you the gift is considered greedy and uncouth in some countries. Wait until you get back to the hotel to unwrap your present.
When traveling to the Philippines, remember that a firm handshake is an American custom. Filipinos prefer a weak, more casual grip. It's about showing respect, not dominance.
Americans often cross their fingers in lieu of saying "I hope so!" It's a sign of good luck. But in Vietnam, crossing one's finger's is a crass gesture that refers to a woman's private parts. Maybe just stick to your lucky rabbit's foot while abroad.