To be filled when I decided on a format that's not lazy. And stop being lazy and procrastinating.
People without a name listed afterward, it generally means he's using your given name without honorifics. Unless I derp and forgot. It's primarily for respect and closeness factor, plus a reminder to myself on whether he's on first name or last name basis with your character.
The people listed are those who have threaded with him long and enough time to at least know your name (real or fake) to call you, and recognised him back, or gave him a strong enough impression despite the lack of name (which will be marked with an '?').
PEOPLE:
Naoya (CANON)
Alfonse Zenia Meridia - Alf
Haruhi Suzumiya - Suzumiya-san
Helios - Mr. Helios
Kiku Honda/Japan - Honda-san
Kohaku
Mami Tomoe - Mami
Masaomi Kida - Kida-san
Mikado Ryugamine - Ryugamine-san
Minako Arisato - Minako-san
Minato Arisato - ?? [Waiting to see how thread goes]
Naoto Shirogane - Shirogane-san
Noel Vermillion
Paprika - Paprika-san
Rise Kujikawa - Rise-san
Rydia - Miss Rydia
Selphie Tilmitt
Terra Branford - Miss Terra
Vash
Yuber
DROPPED
Yuzu Tanikawa (CANON)
Alfonse Zenia Meridia - Alf
Etna
Kamina - Kamina-san
Poland
Shirayuki
Shirou Emiya
Spada Belforma
Rin Tohsaka
Rosalia Rosselini
...and probably others