you shouldn't actually look at the place at night..
I did encounter this during my school holidays time where my dad would put me to stay with my cousin place.

One night was sleeping then i heard kids laughing and playing on the swing and interacting with one another eventhough you couldn't hear it clearly... I woke up at middle of the night and before i could reach out to the window and take a peek... he stopped me... and asked me to go back to sleep. He said to ignore the sounds and kids voices that i was hearing.. and I just went bsck to sleep that night.

In the morning, i asked my cuz about that night what actually happened and he said that the sounds i was hearing is not really real as he has been hearing it many times already.

I asked him what he means by that.. and he said the kids does not exists.. and i got freaked out at that time.

And i asked how do you know?.. and my other younger cuz said that got once he tried to see outside the playground through a reflection of those old pencil sharpener with that small round mirror where we used to use during school time..

He said he manage to see one of the kids...
running about...

but without any head...

since then both my cuz dont dare look outside anymore. when they hear the sounds...

no.. didnt want my dic to be possessed...