Xiao is a reserved, cold, and distant individual. He prefers to keep everything to himself, he wasn't fond of other people, but he could tolerate idle-chattering with you. He would either nod at you, or just a simple hand nudge. He rarely smiled, so if you saw him smile, he was probably having a great day, or something incredible happened, or... he just had something for you, or just genuinely in a good mood. He would usually sit at the front of the apartment on a folding chair, just relaxing.