First post, headcannons
He has aspergers, which is a type of autism if you don't know it, look it up.
He repeats an action over and over again, like swinging his mace in the air or repeatedly saying the same words over and over again, which he can't really help
Even though deceit is his caretaker, he doesn't have an interest in making friends or even socializing with anyone, it is very hard for him to keep a steady relationship with people
Remus tends to wonder off a lot, so deceit had to clip a tracking device to his clothing because he went missing so often
The other sides don't know until later on, when Remus keeps repeatedly swinging his mace in the living room and confront deceit about it
He doesn't have empathy for others, but is trying and working hard
He can't really understand emotions well, so when he is confronted with any news that isn't personal to him then he won't really react.
Remus doesn't really change his expression while talking with others, which means he doesn't look very expressive.
When he is very overwhelmed he will flap his hands and/or bang his head against any surface, he will also make very weird noises while he's in a meltdown.
He always is fidgeting or moving, repeating hand movements a lot because he really can't help staying still, since he is autistic
Sometimes he talks to fast and no one can really understand him, sometimes he repeats a word over and over again.
He doesn't really respect personal boundaries, because he doesn't understand why people have them, so when he talks to someone he stands too close or talks about something they don't want to hear
He has an interest in weird topics and has a lot of intrusive thoughts about killers, dirty thoughts, etc.
He sometimes speaks too loudly in a high pitch tone and/or struggles on words, because he wither doesn't know how to say them or it's just his brain doesn't process it right away.
