Human scenario~
You have been living in/near Addison's Apartment for almost your whole life. Today you were visiting (Friend, besides Sally obviously) and walking through the halls when you bumped in a kid who was a little taller/shorter than you. You almost fell over but quickly caught yourself. "Oh, sorry...! I didn't see you there...!" The kid quickly said. You looked at her, no! Him! You looked at him and got a good look at him. He had blue pigtails and had a.... mask on! You smiled and waved your hand. "It's fine! I was watching where I was going! You're the new neighbors right? I haven't see you around here and I know everyone here. Unless your a person that already lives here and decided to die their hair blue." You joked, smiling. He chuckled quietly. "No, I'm new. I just moved in with my dad. My names Sal but everyone calls me Sally Face." You rose a brow. "Sally Face?" You asked. "Yeah, heh, no very good people I guess." You smiled and nodded. "Guess So! Well, I gotta go Sal! It was nice meeting ya! If you ever wanna hang, I live in room (Number)/down the street!" You said before running off, waiving to him. Continue....
(I know shitty but I don't have any other ideas, sooooo, it'll do!)

Ghost scenario:
Don't have anything for this because NO GHOSTS IN THE FIRST CHAPTER! So, you can skip or make on up.