Formal:
* Salamat po sa pakikinig. (This is the most common and polite way to say it.)
* Maraming salamat po sa inyong pakikinig. (This is a more formal and respectful way to say it.)
* Nagpapasalamat po ako sa inyong pakikinig. (This is another formal and respectful way to say it.)
Informal:
* Salamat sa pakikinig.
* Thank you for listening. (English is widely understood in the Philippines.)
Adding a little more:
* Salamat po sa pakikinig. Sana nagustuhan niyo. (Thank you for listening. I hope you enjoyed it.)
* Maraming salamat po sa inyong pakikinig. Sana nakatulong ito sa inyo. (Thank you for listening. I hope this was helpful to you.)
Note: "Po" is a politeness marker that is used when speaking to someone older or of higher status.
Remember that Filipinos are generally warm and welcoming. A sincere smile and a genuine thank you go a long way!