1-Don't Say the Same Word at the Same Time as Your Friend

According to The Local, in Italy, if you say the same word as someone in unison, you'll never get married (yikes!). To undo this bad juju, you must immediately touch your nose.

2-Listen for Awkward Silences

People associate awkward silences with a lot of different things, but some, according to stylish, believe that when these lulls occur, an angel is passing over.

3-Don't Step on a Manhole

We all know the phrase: "Step on a crack, break your mother's back." But in Sweden, you have to watch out for manholes. If you step on one with the letter A, this will bring you a broken heart and bad luck.

4-Don't Trim Your Nails at Night

Many cultures believe that cutting your nails after the sun goes down is a big N-O. According to U.S.News, one Japanese superstition states it can cause premature death.

5-Throw Salt Over Your Shoulder If You Spill It

We all have that one friend who can't help themselves (or maybe you're that friend). Interestingly enough, Bustle reports that long ago, salt was used as currency — it was how Roman soldiers were paid.

6-Don't Chew Gum at Night

Brace yourselves. In Turkey, chewing gum at night is apparently the equivalent of chewing on the flesh of the dead.

7-Don't Jump Over a Child

Another thing you shouldn't do in Turkey? Jump over a child. Doing this will curse them to be short. Forever.

8-Don't Kiss Babies on the Lips

If you plant one on a baby in Nigeria, legend says you'll condemn them to spend their entire adult lives drooling, reports AOL Lifestyle.

9-No Bananas on Board

Fishermen, according to Hutson, refuse to bring bananas on their boats. "Not bringing a banana on board gives them a sense of control over very dangerous and unpredictable situations," he says.

10-Carry an Acorn to Stay Forever Young

Women in Ancient Britain often kept acorns in their pockets to ensure a youthful complexion. This may just be our favorite anti-aging trick.

11-Don't Let Your Purse Touch the Floor

In Brazil, putting your purse or wallet on the floor means you'll become penniless. So, even if you packed your whole closet in your tote, you better keep it off the tile.

12-Beware of "Unlucky" Animals

According to U.S.News, people in Ireland and Scotland believe seeing a single magpie is bad luck. For South Koreans, the bird with the worst mojo is the crow. For the record, we don't believe anyone should discriminate against animals because of these superstitions.

13-And "Unlucky" Numbers

We all know that Friday the 13th is draped with bad vibes. As Hutson states, "even if people say that they don't [believe], they might expect bad things to happen on some level." We also commonly fear 666, the "devil's number" or "number of the beast." But did you know that in China, the number four is feared because it sounds very close to the Chinese word for "death"? And it's not Friday the 13th Italians dread, it's Friday the 17th.

14-Hide Your Thumbs When Passing a Graveyard

People tend to hold their breath when they pass cemeteries, but in Japan, you must tuck your thumbs in to protect your parents. (The Japanese word for thumb translates as "parent-finger," so hiding it protects them from death.)

15-Avoid Sleeping With Fans On

Many South Koreans also do not sleep with fans running in closed rooms — if they do, it's believed to be fatal. To combat "fan death," legend says to leave windows open.

16-Knock on Wood

Knocking on wood, naturally, is one of the most prevalent superstitions people talk about. And even as an atheist and a self-proclaimed skeptic, Hutson still sees himself falling into the tendency of thinking coincidences are meaningful, or that certain events were meant to happen. He, believe it or not, still knocks on wood.

17-Avoid Broken Mirrors

Matthew Hutson, science writer and author of 7 Laws of Magical Thinking, explained to GoodHousekeeping.com that we pay attention when material is dangerous or deadly, claiming, "it's better to recognize a stick as a snake than a snake as a stick." So, it makes sense that you'd remember the cautionary legend: avoid broken mirrors. You wouldn't want seven years of bad luck!

18-Protect Yourself Against the Evil Eye

The evil eye, a human look believed to cause supernatural harm, is a well-known symbol of bad fortune, according to Live Science. It can be cast on people or even objects like your car or home. There are a number of talismans in many cultures created to ward off this curse (like the popular Hamsa).

19-Don't Sing at the Dinner Table

This is something else you shouldn't do during your evening supper. Apparently, in the Netherlands, singing your favorite tune means you're singing to the devil for your food.

20-Don't Sit at the Corner of the Table

Another act causing you to be barren in the marriage department? Sitting at the corner of the dinner table, according to Hungarian and Russian superstitions.

21-Don't Wear Red During a Storm

In the Philippines, it's believed that the color red attracts lightning. And it's a shame — red surely is the boldest shade.

22-Say "Rabbit Rabbit" Every Month

Saying "rabbit rabbit" or "white rabbit" on the first day of every month ensures good luck for that month, a common belief in Britain and North America. Back in 600 B.C., rabbits were thought to communicate with the spirits of the underworld because they lived underground. A rabbit's foot is also popularly thought to bring good luck (but, apparently, in order for it to be considered lucky, the foot has to be the left hind).

23-Don't Enter a Room With Your Left Foot

In Spain, walking into a room with your left foot will bring you bad luck. It's always better to enter or leave with your right.

24-Don't Open Umbrellas Indoors

According to this superstition, if you open up an umbrella before you head outside, bad luck will "rain" on you. There are some who say this belief came from the early Egyptians, while others say it came from the British in the 18th century when waterproof umbrellas — with metal spokes and a large circumference — could cause injury if opened inside a home.

25-Eat Grapes on New Year's Eve

Also in Spain, instead of kissing someone at midnight to celebrate the New Year, they're encouraged to eat 12 grapes one after the other for good luck.

This is even though the actual outcome of an event or situation is still dependent on known factors – rather than unknown supernatural forces. A notion consistent with the often quoted maxim, ''the harder you work (practice) the luckier you get''.

So the next time you break a mirror, see a black cat or encounter the number 13 – don’t worry too much about ''bad luck'', as it’s most likely just a trick of the mind.

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