Tipping customs differ from country to country. You need to know how to tip in the country that you're in when you travel; or you'll leave servers annoyed everywhere you go. Here are just a few guidelines to tipping in different countries.
Dubai
In Dubai it's a rule for restaurants to charge 10% tip on all restaurant and bar bills You can add a couple of dirhams (迪拉姆，货币单位)to this if you feel like it. Waiters are not paid very much in Dubai, so it is always very appreciated.
Brazil
There will always be a standard 10% service charge added to your bill, and you won't necessarily have to tip. If you do feel like being generous, an extra 5-10% will really make your server very happy. Just remember to do this as skillfully as possible - Brazilians don't make a big show of this.
Czech Republic
While locals in the Czech Republic don't leave tips, that doesn't mean you're off the hook. Foreign tourists are definitely expected to leave some kind of tip for service - as long as you're in a high tourist traffic area, like Prague for instance. The standard tip is 10%.
India
Here it is often considered appropriate for a tourist to tip your server 5-10%. You have to adjust that number by yourself though. This is how the rules go in this country. If the bill is for a small meal and totals less than 300 rupees, tip the full 10％.If the bill is higher, tip towards the 5％．
