Karaoke places in the Philippines are very different.
If they have rooms to rent you go there with friends.
Order food and beers or liquor. And sing your heart out!!
But yes they also have windows in the doors to prevent the obvious.
Then one time I went to a Karaoke Club with two Pinoy friends.
We sit in an alcove and had a big Karaoke screen to watch.
Not soon after we settled down the "manager" came to ask if we wanted a "Private Session" with one of the cute hostesses. You paid by the hour for a room in the back. Bet the doors did not have windows!!!
Is that how it works in Thailand???