Thai culture highly values politeness. Using the respectful particle kha (if you are presenting as female) or khrap (if you are presenting as male) at the end of sentences goes a long way.
While the term "ladyboy" is widely used commercially in Thailand's tourism industry, many individuals prefer the native Thai word Kathoey or simply identifying as women. ladyboy aum maid
Always ask before taking a video or photo. Thai culture highly values politeness