Warrior Cats Sign Language

Developed by @entangled-life on dA & toyhou.se
Free to use with credit!

Conversation

Hello (formal) - tail raised in the air with tail-tip held over the back
Hello (casual) - tail raised in the air and relaxed eyelids
Goodbye - tail raised in the air and dipping head
Yes / I agree - head nod
No / I disagree - head shake
Me - pointing to oneself
You - pointing to partner
Them - pointing to referenced cat
We - pointing to oneself and waving paw side-to-side
You're my friend / I like you - licking partner's forehead
I love you - touching nose to partner's nose
I trust you - touching nose to partner's forehead
I believe in you / I support you - licking partner's shoulder
I respect you - touching nose to partner's shoulder
Thank you - salute from one's mouth to partner
I'm sorry - head lowered with ears pressed back
Good - grinning and nodding
Bad - frowning and shaking head
Why? - head tilt to the left
What? - head tilt to the right
Where were you / What were you doing - both forepaws tapped twice on ground with a curious facial expression
I'm in pain / That hurts - baring teeth and pressing ears back
I don't understand / Say that again - tapping ear and tilting head to the right
I don't know - head shake while shrugging
To denote a question - confused / curious facial expression
'And' is indicated with a brief pause between words
'Or' is indicated by shifting one's shoulder between words
'But' may be indicated like 'or', with a shoulder shift (usually with a different expression)
Emotional - gesturing to throat and swiping upwards
Happy - swiping paw from eye to forehead
Sad - swiping paw from eye to neck
Angry - baring teeth and scrunching muzzle
Disgust - scrunching muzzle
Fear - pressing ears back and widening eyes
Slow - tapping thrice on ground while swiping paw
Fast - tapping twice on ground while swiping paw
Small - unsheathing one claw
Medium - unsheathing two claws on one paw
Big - unsheathing all claws on one paw
More - pressing whiskers forward
Less - flattening whiskers against the face
Numbers are indicated by flicking the whiskers; 1-4 are specific, 5+ is dictated with a quick fluttering motion

Actions, Commands

Come here - paw tapped twice on ground
Go there - paw tapped once on ground then pointed to desired place
Copy me / Follow me - gesturing from partner to oneself with one's tail
Stop that / Be quiet - slapping paw outwards at partner (not connecting)
Pay attention / Listen - paw or tail touched to ear
Smell / Use your nose - paw or tail touched to muzzle
I want to sleep / I'm tired - tapping eyelid twice
I want to eat / I'm hungry - tapping muzzle twice
To hunt (kill prey) - swiping tongue over lips
To fight / Battle - unsheathing claws on both forepaws
To kill (anything that's not prey) - unsheathing claws at throat and swiping to one side
To train - holding paw at throat and swiping to one side
To play - holding paw at throat and swiping side-to-side
To patrol - swiping backwards with paw on the ground
To lead (a group) - quivering tail
To swim - waving paw mid-air near head
To talk / Speech - pawing under chin
To groom / Sharing-tongues - licking (or miming to lick) a forepaw
To go (somewhere) - waving paw from ground forwards
To see - swiping paw outwards from eye
To think - tapping forehead once
To dream - rubbing circle on forehead
To sculpt (clay, mud, etc) - wiggling toes just above ground while tracing a circle
To like (something) - tapping chest once
To want (something) - tapping chest twice
Smell (quality) - tapping nose then gesturing outwards
Taste (quality) - tapping chin then gesturing outwards
Story - pawing under chin then swiping to chest
Play (theater) - pawing under chin then swiping outwards

Relations, Ranks, Gender

Mother - rubbing one's belly with tail or paw
Father - rubbing one's cheeks with tail or paw
Parent - rubbing one's chest with tail or paw
Mama / Papa / Baba - pressing down one ear with forepaw (like having your ear licked)
Mate - tracing a circle on one's chest and, optionally, gesturing to one's mate
Child - tracing a circle on one's chest and gesturing to the ground
Clanmate - tracing a circle mid-air with paw
Outsider / Stranger - holding claws up to throat
Kittypet - pawing around throat (like tracing a collar)
Leader - twitching ears and whiskers while quivering tail
More TBA!
Molly - gesturing to one's belly
Tom - gesturing to one's cheeks
Non-binary - gesturing to one's chest

Places, Nature, Weather

Border - paw swiped in a straight line on ground
Camp - paw swiped in a circle on ground then tapped in the center
Tree - tail held straight out from body and bristled
Bush / Plant - tail held low and bristled
Herb - paw brushed across bristled tail
River - tracing a half-circle on ground
Lake - tracing a wiggly circle on ground
Water - waving paw mid-air
Swampy land - wiggling toes at ground
Mud - wiggling toes under chin
Twolegplace - gesturing with one claw across the left ear (like a TNR scar)
More specific biomes are indicated by combining signs; for example, combining 'tree' and 'swamp' would imply forested wetland
Sky - pointing upwards
Weather - pointing upwards and waving paw
Rain - pointing upwards then waving paw while swiping to the ground
Snow - pointing upwards then wiggling toes while swiping to the ground
Hail - pointing upwards then unsheathing claws while swiping to the ground
Heavy snow / Whiteout - signing 'snow' with both forepaws
Rainstorm - signing 'rain' with both forepaws
Thunderstorm - signing 'rainstorm' then touching both forepaws together
Sunny - pointing upwards and tracing a circle
Cloudy - pointing upwards and waving paw
Foggy - pointing upwards and gesturing side-to-side
Cat - twitching ears and whiskers while pressing a paw to one's chest
Prey / Freshkill - touching unsheathed claws to muzzle
Rabbit - paw touched to ear and swiped upwards
Bird (edible) - signing 'prey' while fluttering ears
ThunderClan - tail held in a zig-zag
ShadowClan - tail puffed and held upright
RiverClan - tail kinked and turned side-to-side
WindClan - tail waved back and forth

Time

Before - flicking tailtip to the left
After - flicking tailtip to the right
Yesterday - flicking whole tail to the left
Tomorrow - flicking whole tail to the right
Moon (month) - tail held in a spiral
Signing "one-moon-tomorrow" would mean "next moon", signing "one-moon-yesterday" would mean "last moon", etc.