{WARNING: These are 𝐇𝐄𝐀𝐃𝐂𝐀𝐍𝐎𝐍𝐒 on how I percieve them in my universe.}
They LOVE warmth.
They go through something similiar to hibernation during the winter. Make sure you have the heat cranked ALL the way up as these entities don't survive very long in the cold.
They will turn into their demonic forms when stressed, pissed, ect. Try to keep them calm.
They LOVE physical attention.
They purr like cats! They can also hiss, growl, snarl, ect. Heck some can even howl and roar!
They can eat human food(as they are 𝒌𝒊𝒏𝒅𝒂 part human) but if there's one thing you CANNOT give them it's fish. Any kind of fish. Do not give them fish. Unless you want them sick to their stomachs. Seriously. Don't give them fish.
"How will I know if they're sick?" Oh you'll know. You will know.
"Can I give them sweets?" Yeah you can. Just try not to give them 𝒕𝒐𝒐 much.
They love being cuddled. Seriously. They love it.
"Can I give them alchohol?" Yeah as long as it's the legal age go ahead. Again, don't give them 𝒕𝒐𝒐 much
Little heads up. They vomit void. Litaral void. Out of every.single.mouth.they.have.on.their.demonic. form.
Them shifting back into their normal form after whatever reason can leave them feeling icky for some time so just be wary.
They can create illusions and hypnotise peeps w/ their demonic-entity-powers.
So yeah. Ask any questions. "Can I have-" As long as it's the legal age and you have consent then do whatever.