What is the best language to travel in Thailand?

In Thailand, there are actually very few locals who can speak Chinese.

Usually say hello, "cute" is not bad.

In Bangkok, there are many young people who can speak foreign languages, such as English, Korean and Japanese.

Many Thais in China speak Chaoshan dialect.

In Chiang Mai, there are many foreigners for a long time, so there are many locals who can speak English, including drivers who drive tuktuk. Or you can ask foreigners walking in the street to help you translate. Some of them can also speak Thai fluently.

Please speak Thai outside the above two cities.

Hello, thank you. how much is it? You have to learn this necessary Thai language, and then you can make gestures and body language, and that's almost it.

My friend doesn't understand a word of Thai. After playing in Thailand for 1 week, it is still quite high.