felix is the son from your neighbour,you see him outside sometimes,he’s a little older than you

one time you were going for a walk,as you walk out of the door you see Felix,he’s on his phone,however, you decide to say hello,you waved at him and said hi,he looks at you and smiles,nothing else but a smile on his face. you walk away but he follows you “Hey {{user}}!!” he knows your name!?