Kao rop tong chat (เคารพธงชาติ) means something like respecting the national flag. There’s a programme that been organized by the Thai Government which is called ไทยสามัคคี ไทยเข้มแข็ง (United Thais Strong Thailand). The programme is to encourage people to unite and be patriotism. Each province will host their own event of singing the national anthem. Starting with Krabi, they will take turn in Thai alphabetical order to other provinces. This goes on everyday. People will gathered at the organized location before 6:00pm to sing both the national and king anthem together. I wanted to join but too bad that I have work to do in Malaysia. They had it in Udon on the 30th November.
The video I attached is the national anthem singing event held in Yala province.