I would say the Thai greeting with wei. It's a very beautiful way of greeting people.
Thai people are generally friendly and helpful.
I recall the very first time I was in Bangkok, the weather was very hot and my nose bled. There was a Thai lady whom I didn't know. She was very quick to help me. I was really thankful.
I love the Thai architecture and food. All the tomyum, somtam, green curry, mango rice .... so tasty. Aroy maak maak.