Formal:
* ຂໍໂທດ (kʰɔː tʰoːt) - literally "excuse me" but used as "please" in formal situations like asking for something politely or expressing a request.
Informal:
* ຊ່ວຍ (t͡ʃʰuːaj) - means "help" but can also be used as "please" in informal settings like asking someone for help.
* ໄດ້ (daj) - means "can" or "may" but can also be used as "please" in informal situations. For example, "Can I have some water?" would be "ໄດ້ນ້ຳໜ້ອຍໜຶ່ງບໍ?" (daj nám nɔ́j n̥y̌ŋ bɔː?)
Note: It's important to be aware of the context and level of formality when choosing how to say "please" in Lao.