Many Japanese people believe it is poor manners to walk or do other physical activities while eating because it means you're not appreciating your food properly. For some, this belief has its roots in World War II, when food was scarce and it was something to be treasured, not treated casually.
Walking and eating in Japan
Japanese tend not to eat while walking along or standing around on the street. However, it is acceptable to drink while standing aside a vending machine. Eating and drinking on local trains, but not long distance express trains, is also frowned upon.
Although walking and eating is often convenient and widely accepted in many Western cultures, the practice is looked down upon in Japan. Many also consider it rude to eat in public or on the trains. There are just a few exceptions to this rule, including the fact that it is OK to eat an ice-cream cone on the street.
Expect to carry your trash with you. Eating while walking is considered bad mannered. Sit down or at least stand in a place away from pedestrian traffic when enjoying a meal or snack.
In Japan, crossing one's legs is seen as disrespectful. It is because when you do this you show the bottom of your feet to guests, and since they have picked up dirt, you are showing that dirt to your guests. This makes for very bad business relations.
If you are not wearing socks, it is polite to bring a fresh pair of socks to wear after removing your outdoor shoes because entering someone's house barefoot is not considered well mannered, although acceptable in informal situations.
Avoid things like tank tops, shorts, and mini-skirts. Opting for more conservative clothing is always a safe bet even if you don't plan to visit temples or shrines. It's also generally frowned upon for women to show cleavage. Clothing with offensive messages or designs.
Don't point. Pointing at people or things is considered rude in Japan. Instead of using a finger to point at something, the Japanese use a hand to gently wave at what they would like to indicate. When referring to themselves, people will use their forefinger to touch their nose instead of pointing at themselves.
Prolonged eye contact (staring) is considered rude. Don't show affection, such as hugging or shoulder slapping, in public. Never beckon with your forefinger. The Japanese extend their right arm out in front, bending the wrist down, waving fingers.
It is considered inappropriate for adults to eat while walking, so street food is often eaten on the spot where it is bought. Food should not be eaten with one's fingers. Spoons are used to eat soup, but chopsticks are used for everything else.
Some new studies have shown that eating while you are walking can cause weight gain. The findings have said that while walking you tend to consume more food than when you are stagnant.
Upsets stomach
With extensive walking after meal benefits, it may have few associated side effects experienced by some people, such as an upset stomach. However, they face similar symptoms like diarrhea, gas, and bloating. It takes place when recently eaten food moves and disturbs the ideal environment of digestion.
Pointing the finger is considered rude in Japanese culture because the person pointing is associated with explicitly calling out the other individual for their wrong behavior or actions. Repeatedly pointing while speaking to another person is considered a sign of extreme frustration or an expression of dissatisfaction.
If you're walking around temples and shrines, it is a good idea to be respectful and have a top layer with sleeves and no tummy or cleavage showing. However, it is not a rule and you'll sometimes see Japanese people not following these dress-code standards.
Those with a body mass index of less than 18.5 percent are considered underweight by Japanese standards.
Perfume is complex and subjective by its very nature. In Japan, the cultural state of mind around fragrance simply doesn't exist. In fact, it's considered culturally offensive to wear strong scents, so light, clean, dry, understated scents are the preference.
You can use the phone for texting or surfing the internet, as long as it doesn't make any noise. If you want to listen to music, you should wear headphones.
Fortunately, your smile is unlikely to be considered rude or offensive, but it might cause misunderstanding since it is not a part of Japanese culture.
It is generally acceptable to wear red in Japan, but some contexts such as religious sites or funerals may require more subdued colors like black or white. Neutral colors like black, gray, navy blue, light ... In short: Yes.
In Japan, modesty is highly valued, and it is not appropriate to wear leggings that are too thin or show too much skin. Secondly, it is important to choose the right shoes to wear with your leggings. Sneakers and boots are great options, but sandals or flip-flops are not recommended.
The short answer to this question is no; there is no law or rule that requires women to wear bras in Japan. However, it is important to note that some establishments may have their own dress codes which require women to wear bras or other undergarments such as camisoles or slips.
White should be avoided, although at a more casual wedding you may be able to wear black. On the other hand, it's not all rules and customs.
Wear slip-on shoes
While flip flops are a big no-no for most occasions (save for a trip to the beach or a midnight run to the conbini), comfy ballet flats, loafers, boat shoes, or even a nice pair of slip-on sneakers are practical options. You might also notice that open-toed shoes and sandals are uncommon.
Public Displays of Affection
PDAs, gay or otherwise, are discouraged in Japan. Holding hands, kissing, and intimate embraces could garner disapproving looks and glances. That said, you're unlikely to witness any outright discrimination.