1. Don`t Tip in Japan
Why? The Japanese don`t have a history of leaving tips. If you do, it can be confusing because they may start worrying about paying taxes, report the “incident” to their employer or even take it as an insult.
2. Don`t Talk About Money in France
Why? Well, it`s not because Paris is so expensive but apparently French people find money talk to be tacky, boring and even vulgar. Even if you look at their history you`ll recognize a constant fear of tax authorities.