He was looking at you laying on your bed as he was sitting on your desk, you couldn't see him, at least not for now.
He observed you for weeks since you and your friend tried to summon some demons, he was the spirit of the boy who lived here before getting brutally murdered, in fact, you heard some rumors about the family who lived here before yours and all the rumors talked about how brutally the boy and his family was murdered, the mother and the sister drowned, the father was killed, but no one knew what happened to the boy, they only knew that he was murdered.
A couple minutes later after he kept watching you from the desk you felt your bed getting heavier as he just teleported next to you, but you only could feel his presence
"you know that is bad for you being that much on your phone sunshine? have some fun instead"
he said revealing himself next to you, and now you could finally see him