She says plenty without a sound. Here is how to read Her Fluffiness, and how to answer before she has to repeat herself.
Curious & friendly
Forward
Ears up and swung forward. She is engaged and interested; a good moment to say hello.
Calm & content
Relaxed / neutral
Ears upright and easy, facing loosely forward. All is well in the kingdom: comfortable, calm and at ease.
Listening
Swiveling
Ears rotating like little satellite dishes to track a sound. Alert and reading the room, not upset.
Overstimulated
Sideways (airplane mode)
Ears turned out to the sides like little wings. Uncertain, annoyed or over it; a gentle sign to ease off.
Irritated
Slightly back
Ears tipped back a touch. Cautious and a little annoyed, weighing whether to react. Give her a moment.
Give her space
Flat against head
Ears pinned flat to the head to protect them. Fear or defensive aggression under real stress. Do not reach in; let her calm down on her own.
Multitasking
One ear back
One ear forward, one swung back, tracking two things at once (often something behind her). Mildly on guard.
On high alert
High & tall
Ears at full height, straight up. Very alert and keyed up, locked onto something she has decided is important.
Anxious
Low & wide
Ears held low and splayed wide. Worried and feeling threatened, but not looking for a fight. Reassure her, do not crowd.
Hunting
Predatory focus
Ears forward and locked, the whole face focused. Full hunting mode: intense concentration, ready to pounce (on a toy, ideally).
Blissed out
Content & sleepy
Ears loose and slightly rotated as she dozes. Deeply relaxed, comfortable and safe. Peak contentment.
Back off
Aggressive / hissing
Mouth open, ears back, warning issued. She feels threatened and is telling you to stay away. Respect it and give her room.
One a photo can't hold: quick ear-flicking or twitching. Usually plain irritation (or a passing fly); if it comes with head-shaking or scratching, check her ears.
When the signals say ease off or give space, the kind move is exactly that: no reaching, no scooping. Let her come back to you.
Calm & content
Relaxed / neutral
Eyes open and easy, pupils a normal almond. All is well: comfortable, content and at ease. A fine moment to say hello.
Sleepy & safe
Soft / sleepy
Lids low and soft, eyes half closed at rest. Deeply relaxed and feeling safe. Let her drift; this is real trust.
Excited / aroused
Dilated / excited
Pupils blown wide and round. Excited, playful or aroused, though wide pupils can also mean fear, so read her ears and body too. Fine for play while the mood stays light.
Curious & engaged
Interested / alert
Eyes open, pupils mid-size, gaze fixed on something. Curious and mentally engaged, taking it all in.
Locked in
Narrowed / intense
Pupils drawn to a focused line, stare steady. Determined and confident while she sizes things up. Let her work it out.
Overstimulated
Very narrow / agitated
Pupils pulled to thin slits. Annoyed, overstimulated, or simply in bright light. If the mood is tense, ease off the fuss and give her a breather.
Wary & watching
Suspicious / cautious
Eyes half narrowed, watching closely. Unsure and checking whether things are safe. Move slowly and let her make the call.
Startled
Round / surprised
Eyes suddenly wide and round. Something sudden caught her off guard and she is on alert. Give her a beat to see it is nothing.
Check on her
Unequal pupils
One pupil larger than the other. It can be normal in dim or changing light, but if it lasts, or comes with squinting, pawing at the eye, or her seeming off, call the vet.
I trust you
Slow blink
A slow, lazy blink held for a beat. Her way of saying she trusts you and feels safe. Slow-blink back; it is the highest compliment a cat gives.
Scared
Wide-eyed / fearful
Eyes stretched wide, usually with big pupils, body braced. Scared and feeling threatened, looking for a way out. Do not crowd or corner her; give her space and a clear exit.
Deeply relaxed
Blink / eyes closed
Eyes shut, face soft and smooth. Very relaxed and trusting, or tuning the world out to rest. Leave her to it.
Two things a still can't show: a hard, unblinking stare (a challenge, so look away and don't stare back) and the third eyelid sliding across the inner corner (often tiredness, sometimes illness).
Eyes are also health tells. Unequal pupils that do not settle, a suddenly cloudy, red or weepy eye, constant squinting, or pawing at one eye are a vet call, not a mood.
Confident
Held high
Tail straight up like a flagpole. Confident, happy and pleased with the world. A good moment to say hello.
Friendly hello
Upright with tip curved
Tail up with a little hook at the tip, the friendly question mark. Her warmest hello: she is glad to see you.
Content
Gentle curve
Tail up in a soft, easy curve. Content and comfortable, cruising through her day.
Curious
Horizontal
Tail held straight out behind her. Alert and curious, sizing something up before she commits.
At ease
Low / relaxed
Tail carried low and loose. Calm and neutral. A low tail can also mean caution, so read it with her ears and body.
Insecure
Tucked
Tail curled down and tucked close. Anxious, unsure or feeling small. Do not crowd her; go slow and let her settle.
Spooked
Puffed up
Tail bristled into a bottlebrush. Frightened and trying to look bigger. Something spooked her; give her room until she calms.
Defensive
Puffed with curve
Bottlebrush tail over an arched back, the Halloween-cat pose. Highly aroused and defensive. Back off and let the moment pass.
Irritated
Flicking
Tail swishing side to side. Annoyed, irritated or over it. A clear sign to ease off before she is truly done.
Focused
Tip twitching
Just the tip flicking while the rest stays still. Focused and concentrating, often mid-hunt. Engaged, not upset.
Cozy
Wrapped around
Tail curled neatly around herself. Relaxed and cozy, keeping warm and self-contained. Peak contentment.
Back off
Thumping
Tail thumping the floor. Very annoyed and warning you to back off. Stop, and give her space.
A still cannot show the motion, and motion is half the message: a fast lash means far more than a slow sway. A low tail can read as calm or cautious, so always check it against her ears, eyes and posture.
When her tail says back off (puffed, thumping, a hard flick), take it at its word: stop what you are doing, give her space, and let her reset.