I was eating at the dinner table in front of the window at night and the curtains were closed, good quality thick curtains in fact, there is a street lamp in front of the house.
A group of girls walked past the window and I heard laughing, wtf! Did they see me or something!? How did they do that!?
- - - Updated - - -
They didn't sound like they were mocking, they just giggled and nobody shouted anything and my brother came through the door in a huff and went straight to bed, I am a bit scared now, if my brother has seen anything, I will just say it's a harmless thing I am doing and I honestly didn't think they would see.